21070725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21611}}^1$

素因数の和:21637

約数の個数: 24

約数和(自身を含む): 37518432

約数和(自身を除く): 16447707

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21611, 64833, 108055, 280943, 324165, 540275, 842829, 1404715, 1620825, 4214145, 7023575, 21070725]

約数ペア:

[(1, 21070725), (3, 7023575), (5, 4214145), (13, 1620825), (15, 1404715), (25, 842829), (39, 540275), (65, 324165), (75, 280943), (195, 108055), (325, 64833), (975, 21611)]