20542212

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 54512640

約数和(自身を除く): 33970428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 79, 93, 124, 158, 186, 233, 237, 279, 316, 372, 466, 474, 558, 699, 711, 932, 948, 1116, 1398, 1422, 2097, 2449, 2796, 2844, 4194, 4898, 7223, 7347, 8388, 9796, 14446, 14694, 18407, 21669, 22041, 28892, 29388, 36814, 43338, 44082, 55221, 65007, 73628, 86676, 88164, 110442, 130014, 165663, 220884, 260028, 331326, 570617, 662652, 1141234, 1711851, 2282468, 3423702, 5135553, 6847404, 10271106, 20542212]

約数ペア:

[(1, 20542212), (2, 10271106), (3, 6847404), (4, 5135553), (6, 3423702), (9, 2282468), (12, 1711851), (18, 1141234), (31, 662652), (36, 570617), (62, 331326), (79, 260028), (93, 220884), (124, 165663), (158, 130014), (186, 110442), (233, 88164), (237, 86676), (279, 73628), (316, 65007), (372, 55221), (466, 44082), (474, 43338), (558, 36814), (699, 29388), (711, 28892), (932, 22041), (948, 21669), (1116, 18407), (1398, 14694), (1422, 14446), (2097, 9796), (2449, 8388), (2796, 7347), (2844, 7223), (4194, 4898)]