21641256

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:405

約数の個数: 160

約数和(自身を含む): 74807040

約数和(自身を除く): 53165784

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 36, 39, 42, 52, 54, 56, 63, 72, 78, 81, 84, 91, 104, 108, 117, 126, 156, 162, 168, 182, 189, 216, 234, 252, 273, 312, 324, 351, 364, 367, 378, 468, 504, 546, 567, 648, 702, 728, 734, 756, 819, 936, 1053, 1092, 1101, 1134, 1404, 1468, 1512, 1638, 2106, 2184, 2202, 2268, 2457, 2569, 2808, 2936, 3276, 3303, 4212, 4404, 4536, 4771, 4914, 5138, 6552, 6606, 7371, 7707, 8424, 8808, 9542, 9828, 9909, 10276, 13212, 14313, 14742, 15414, 19084, 19656, 19818, 20552, 23121, 26424, 28626, 29484, 29727, 30828, 33397, 38168, 39636, 42939, 46242, 57252, 58968, 59454, 61656, 66794, 69363, 79272, 85878, 92484, 100191, 114504, 118908, 128817, 133588, 138726, 171756, 184968, 200382, 208089, 237816, 257634, 267176, 277452, 300573, 343512, 386451, 400764, 416178, 515268, 554904, 601146, 772902, 801528, 832356, 901719, 1030536, 1202292, 1545804, 1664712, 1803438, 2404584, 2705157, 3091608, 3606876, 5410314, 7213752, 10820628, 21641256]

約数ペア:

[(1, 21641256), (2, 10820628), (3, 7213752), (4, 5410314), (6, 3606876), (7, 3091608), (8, 2705157), (9, 2404584), (12, 1803438), (13, 1664712), (14, 1545804), (18, 1202292), (21, 1030536), (24, 901719), (26, 832356), (27, 801528), (28, 772902), (36, 601146), (39, 554904), (42, 515268), (52, 416178), (54, 400764), (56, 386451), (63, 343512), (72, 300573), (78, 277452), (81, 267176), (84, 257634), (91, 237816), (104, 208089), (108, 200382), (117, 184968), (126, 171756), (156, 138726), (162, 133588), (168, 128817), (182, 118908), (189, 114504), (216, 100191), (234, 92484), (252, 85878), (273, 79272), (312, 69363), (324, 66794), (351, 61656), (364, 59454), (367, 58968), (378, 57252), (468, 46242), (504, 42939), (546, 39636), (567, 38168), (648, 33397), (702, 30828), (728, 29727), (734, 29484), (756, 28626), (819, 26424), (936, 23121), (1053, 20552), (1092, 19818), (1101, 19656), (1134, 19084), (1404, 15414), (1468, 14742), (1512, 14313), (1638, 13212), (2106, 10276), (2184, 9909), (2202, 9828), (2268, 9542), (2457, 8808), (2569, 8424), (2808, 7707), (2936, 7371), (3276, 6606), (3303, 6552), (4212, 5138), (4404, 4914), (4536, 4771)]