20927475

素因数分解:

$3^2\times 5^2\times {\mathrm{281}}^1\times {\mathrm{331}}^1$

素因数の和:628

約数の個数: 36

約数和(自身を含む): 37730472

約数和(自身を除く): 16802997

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 281, 331, 843, 993, 1405, 1655, 2529, 2979, 4215, 4965, 7025, 8275, 12645, 14895, 21075, 24825, 63225, 74475, 93011, 279033, 465055, 837099, 1395165, 2325275, 4185495, 6975825, 20927475]

約数ペア:

[(1, 20927475), (3, 6975825), (5, 4185495), (9, 2325275), (15, 1395165), (25, 837099), (45, 465055), (75, 279033), (225, 93011), (281, 74475), (331, 63225), (843, 24825), (993, 21075), (1405, 14895), (1655, 12645), (2529, 8275), (2979, 7025), (4215, 4965)]