21706265

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4663}}^1$

素因数の和:4701

約数の個数: 24

約数和(自身を含む): 31901760

約数和(自身を除く): 10195495

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 4655, 4663, 23315, 32641, 88597, 163205, 228487, 442985, 620179, 1142435, 3100895, 4341253, 21706265]

約数ペア:

[(1, 21706265), (5, 4341253), (7, 3100895), (19, 1142435), (35, 620179), (49, 442985), (95, 228487), (133, 163205), (245, 88597), (665, 32641), (931, 23315), (4655, 4663)]