20725866

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1597}}^1$

素因数の和:1715

約数の個数: 48

約数和(自身を含む): 51851904

約数和(自身を除く): 31126038

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 103, 126, 206, 309, 618, 721, 927, 1442, 1597, 1854, 2163, 3194, 4326, 4791, 6489, 9582, 11179, 12978, 14373, 22358, 28746, 33537, 67074, 100611, 164491, 201222, 328982, 493473, 986946, 1151437, 1480419, 2302874, 2960838, 3454311, 6908622, 10362933, 20725866]

約数ペア:

[(1, 20725866), (2, 10362933), (3, 6908622), (6, 3454311), (7, 2960838), (9, 2302874), (14, 1480419), (18, 1151437), (21, 986946), (42, 493473), (63, 328982), (103, 201222), (126, 164491), (206, 100611), (309, 67074), (618, 33537), (721, 28746), (927, 22358), (1442, 14373), (1597, 12978), (1854, 11179), (2163, 9582), (3194, 6489), (4326, 4791)]