521325

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{331}}^1$

素因数の和:354

約数の個数: 36

約数和(自身を含む): 1070368

約数和(自身を除く): 549043

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 331, 525, 993, 1575, 1655, 2317, 2979, 4965, 6951, 8275, 11585, 14895, 20853, 24825, 34755, 57925, 74475, 104265, 173775, 521325]

約数ペア:

[(1, 521325), (3, 173775), (5, 104265), (7, 74475), (9, 57925), (15, 34755), (21, 24825), (25, 20853), (35, 14895), (45, 11585), (63, 8275), (75, 6951), (105, 4965), (175, 2979), (225, 2317), (315, 1655), (331, 1575), (525, 993)]