21274725

素因数分解:

$3^1\times 5^2\times {\mathrm{419}}^1\times {\mathrm{677}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 35310240

約数和(自身を除く): 14035515

約数列:

[1, 3, 5, 15, 25, 75, 419, 677, 1257, 2031, 2095, 3385, 6285, 10155, 10475, 16925, 31425, 50775, 283663, 850989, 1418315, 4254945, 7091575, 21274725]

約数ペア:

[(1, 21274725), (3, 7091575), (5, 4254945), (15, 1418315), (25, 850989), (75, 283663), (419, 50775), (677, 31425), (1257, 16925), (2031, 10475), (2095, 10155), (3385, 6285)]