21251175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25759}}^1$

素因数の和:25783

約数の個数: 24

約数和(自身を含む): 38330880

約数和(自身を除く): 17079705

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25759, 77277, 128795, 283349, 386385, 643975, 850047, 1416745, 1931925, 4250235, 7083725, 21251175]

約数ペア:

[(1, 21251175), (3, 7083725), (5, 4250235), (11, 1931925), (15, 1416745), (25, 850047), (33, 643975), (55, 386385), (75, 283349), (165, 128795), (275, 77277), (825, 25759)]