21461890

素因数分解:

$2^1\times 5^1\times {\mathrm{1459}}^1\times {\mathrm{1471}}^1$

素因数の和:2937

約数の個数: 16

約数和(自身を含む): 38684160

約数和(自身を除く): 17222270

約数列:

[1, 2, 5, 10, 1459, 1471, 2918, 2942, 7295, 7355, 14590, 14710, 2146189, 4292378, 10730945, 21461890]

約数ペア:

[(1, 21461890), (2, 10730945), (5, 4292378), (10, 2146189), (1459, 14710), (1471, 14590), (2918, 7355), (2942, 7295)]