21260772

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1$

素因数の和:842

約数の個数: 96

約数和(自身を含む): 62563200

約数和(自身を除く): 41302428

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 27, 36, 38, 39, 52, 54, 57, 76, 78, 108, 114, 117, 156, 171, 228, 234, 247, 342, 351, 468, 494, 513, 684, 702, 741, 797, 988, 1026, 1404, 1482, 1594, 2052, 2223, 2391, 2964, 3188, 4446, 4782, 6669, 7173, 8892, 9564, 10361, 13338, 14346, 15143, 20722, 21519, 26676, 28692, 30286, 31083, 41444, 43038, 45429, 60572, 62166, 86076, 90858, 93249, 124332, 136287, 181716, 186498, 196859, 272574, 279747, 372996, 393718, 408861, 545148, 559494, 590577, 787436, 817722, 1118988, 1181154, 1635444, 1771731, 2362308, 3543462, 5315193, 7086924, 10630386, 21260772]

約数ペア:

[(1, 21260772), (2, 10630386), (3, 7086924), (4, 5315193), (6, 3543462), (9, 2362308), (12, 1771731), (13, 1635444), (18, 1181154), (19, 1118988), (26, 817722), (27, 787436), (36, 590577), (38, 559494), (39, 545148), (52, 408861), (54, 393718), (57, 372996), (76, 279747), (78, 272574), (108, 196859), (114, 186498), (117, 181716), (156, 136287), (171, 124332), (228, 93249), (234, 90858), (247, 86076), (342, 62166), (351, 60572), (468, 45429), (494, 43038), (513, 41444), (684, 31083), (702, 30286), (741, 28692), (797, 26676), (988, 21519), (1026, 20722), (1404, 15143), (1482, 14346), (1594, 13338), (2052, 10361), (2223, 9564), (2391, 8892), (2964, 7173), (3188, 6669), (4446, 4782)]