20914278

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:282

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 34243482

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 29, 33, 42, 49, 58, 66, 77, 87, 98, 147, 154, 174, 203, 223, 231, 294, 319, 406, 446, 462, 539, 609, 638, 669, 957, 1078, 1218, 1338, 1421, 1561, 1617, 1914, 2233, 2453, 2842, 3122, 3234, 4263, 4466, 4683, 4906, 6467, 6699, 7359, 8526, 9366, 10927, 12934, 13398, 14718, 15631, 17171, 19401, 21854, 31262, 32781, 34342, 38802, 45269, 46893, 51513, 65562, 71137, 90538, 93786, 103026, 120197, 135807, 142274, 213411, 240394, 271614, 316883, 360591, 426822, 497959, 633766, 721182, 950649, 995918, 1493877, 1901298, 2987754, 3485713, 6971426, 10457139, 20914278]

約数ペア:

[(1, 20914278), (2, 10457139), (3, 6971426), (6, 3485713), (7, 2987754), (11, 1901298), (14, 1493877), (21, 995918), (22, 950649), (29, 721182), (33, 633766), (42, 497959), (49, 426822), (58, 360591), (66, 316883), (77, 271614), (87, 240394), (98, 213411), (147, 142274), (154, 135807), (174, 120197), (203, 103026), (223, 93786), (231, 90538), (294, 71137), (319, 65562), (406, 51513), (446, 46893), (462, 45269), (539, 38802), (609, 34342), (638, 32781), (669, 31262), (957, 21854), (1078, 19401), (1218, 17171), (1338, 15631), (1421, 14718), (1561, 13398), (1617, 12934), (1914, 10927), (2233, 9366), (2453, 8526), (2842, 7359), (3122, 6699), (3234, 6467), (4263, 4906), (4466, 4683)]