20953608

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 56851200

約数和(自身を除く): 35897592

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 239, 281, 312, 478, 562, 717, 843, 956, 1124, 1434, 1686, 1912, 2248, 2868, 3107, 3372, 3653, 5736, 6214, 6744, 7306, 9321, 10959, 12428, 14612, 18642, 21918, 24856, 29224, 37284, 43836, 67159, 74568, 87672, 134318, 201477, 268636, 402954, 537272, 805908, 873067, 1611816, 1746134, 2619201, 3492268, 5238402, 6984536, 10476804, 20953608]

約数ペア:

[(1, 20953608), (2, 10476804), (3, 6984536), (4, 5238402), (6, 3492268), (8, 2619201), (12, 1746134), (13, 1611816), (24, 873067), (26, 805908), (39, 537272), (52, 402954), (78, 268636), (104, 201477), (156, 134318), (239, 87672), (281, 74568), (312, 67159), (478, 43836), (562, 37284), (717, 29224), (843, 24856), (956, 21918), (1124, 18642), (1434, 14612), (1686, 12428), (1912, 10959), (2248, 9321), (2868, 7306), (3107, 6744), (3372, 6214), (3653, 5736)]