21507950

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{4259}}^1$

素因数の和:4372

約数の個数: 24

約数和(自身を含む): 40410360

約数和(自身を除く): 18902410

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 4259, 5050, 8518, 21295, 42590, 106475, 212950, 430159, 860318, 2150795, 4301590, 10753975, 21507950]

約数ペア:

[(1, 21507950), (2, 10753975), (5, 4301590), (10, 2150795), (25, 860318), (50, 430159), (101, 212950), (202, 106475), (505, 42590), (1010, 21295), (2525, 8518), (4259, 5050)]