21091920304

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1\times {\mathrm{383}}^1$

素因数の和:867

約数の個数: 160

約数和(自身を含む): 51036733440

約数和(自身を除く): 29944813136

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 109, 112, 182, 208, 218, 347, 364, 383, 436, 694, 728, 763, 766, 872, 1388, 1417, 1456, 1526, 1532, 1744, 2429, 2681, 2776, 2834, 3052, 3064, 4511, 4858, 4979, 5362, 5552, 5668, 6104, 6128, 9022, 9716, 9919, 9958, 10724, 11336, 12208, 18044, 19432, 19838, 19916, 21448, 22672, 31577, 34853, 36088, 37823, 38864, 39676, 39832, 41747, 42896, 63154, 69706, 72176, 75646, 79352, 79664, 83494, 126308, 132901, 139412, 151292, 158704, 166988, 252616, 264761, 265802, 278824, 292229, 302584, 333976, 491699, 505232, 529522, 531604, 542711, 557648, 584458, 605168, 667952, 930307, 983398, 1059044, 1063208, 1085422, 1168916, 1727713, 1860614, 1966796, 2118088, 2126416, 2170844, 2337832, 3441893, 3455426, 3721228, 3798977, 3933592, 4236176, 4341688, 4675664, 6883786, 6910852, 7442456, 7597954, 7867184, 8683376, 12093991, 13767572, 13821704, 14486209, 14884912, 15195908, 24187982, 27535144, 27643408, 28972418, 30391816, 48375964, 55070288, 57944836, 60783632, 96751928, 101403463, 115889672, 188320717, 193503856, 202806926, 231779344, 376641434, 405613852, 753282868, 811227704, 1318245019, 1506565736, 1622455408, 2636490038, 3013131472, 5272980076, 10545960152, 21091920304]

約数ペア:

[(1, 21091920304), (2, 10545960152), (4, 5272980076), (7, 3013131472), (8, 2636490038), (13, 1622455408), (14, 1506565736), (16, 1318245019), (26, 811227704), (28, 753282868), (52, 405613852), (56, 376641434), (91, 231779344), (104, 202806926), (109, 193503856), (112, 188320717), (182, 115889672), (208, 101403463), (218, 96751928), (347, 60783632), (364, 57944836), (383, 55070288), (436, 48375964), (694, 30391816), (728, 28972418), (763, 27643408), (766, 27535144), (872, 24187982), (1388, 15195908), (1417, 14884912), (1456, 14486209), (1526, 13821704), (1532, 13767572), (1744, 12093991), (2429, 8683376), (2681, 7867184), (2776, 7597954), (2834, 7442456), (3052, 6910852), (3064, 6883786), (4511, 4675664), (4858, 4341688), (4979, 4236176), (5362, 3933592), (5552, 3798977), (5668, 3721228), (6104, 3455426), (6128, 3441893), (9022, 2337832), (9716, 2170844), (9919, 2126416), (9958, 2118088), (10724, 1966796), (11336, 1860614), (12208, 1727713), (18044, 1168916), (19432, 1085422), (19838, 1063208), (19916, 1059044), (21448, 983398), (22672, 930307), (31577, 667952), (34853, 605168), (36088, 584458), (37823, 557648), (38864, 542711), (39676, 531604), (39832, 529522), (41747, 505232), (42896, 491699), (63154, 333976), (69706, 302584), (72176, 292229), (75646, 278824), (79352, 265802), (79664, 264761), (83494, 252616), (126308, 166988), (132901, 158704), (139412, 151292)]