21041710

素因数分解:

$2^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{8731}}^1$

素因数の和:8979

約数の個数: 16

約数和(自身を含む): 38036592

約数和(自身を除く): 16994882

約数列:

[1, 2, 5, 10, 241, 482, 1205, 2410, 8731, 17462, 43655, 87310, 2104171, 4208342, 10520855, 21041710]

約数ペア:

[(1, 21041710), (2, 10520855), (5, 4208342), (10, 2104171), (241, 87310), (482, 43655), (1205, 17462), (2410, 8731)]