21514125

素因数分解:

$3^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 36211968

約数和(自身を除く): 14697843

約数列:

[1, 3, 5, 15, 25, 75, 103, 125, 309, 375, 515, 557, 1545, 1671, 2575, 2785, 7725, 8355, 12875, 13925, 38625, 41775, 57371, 69625, 172113, 208875, 286855, 860565, 1434275, 4302825, 7171375, 21514125]

約数ペア:

[(1, 21514125), (3, 7171375), (5, 4302825), (15, 1434275), (25, 860565), (75, 286855), (103, 208875), (125, 172113), (309, 69625), (375, 57371), (515, 41775), (557, 38625), (1545, 13925), (1671, 12875), (2575, 8355), (2785, 7725)]