21476925

素因数分解:

$3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1801}}^1$

素因数の和:1870

約数の個数: 36

約数和(自身を含む): 39215124

約数和(自身を除く): 17738199

約数列:

[1, 3, 5, 9, 15, 25, 45, 53, 75, 159, 225, 265, 477, 795, 1325, 1801, 2385, 3975, 5403, 9005, 11925, 16209, 27015, 45025, 81045, 95453, 135075, 286359, 405225, 477265, 859077, 1431795, 2386325, 4295385, 7158975, 21476925]

約数ペア:

[(1, 21476925), (3, 7158975), (5, 4295385), (9, 2386325), (15, 1431795), (25, 859077), (45, 477265), (53, 405225), (75, 286359), (159, 135075), (225, 95453), (265, 81045), (477, 45025), (795, 27015), (1325, 16209), (1801, 11925), (2385, 9005), (3975, 5403)]