19954510

素因数分解:

$2^1\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{1621}}^1$

素因数の和:2859

約数の個数: 16

約数和(自身を含む): 35969472

約数和(自身を除く): 16014962

約数列:

[1, 2, 5, 10, 1231, 1621, 2462, 3242, 6155, 8105, 12310, 16210, 1995451, 3990902, 9977255, 19954510]

約数ペア:

[(1, 19954510), (2, 9977255), (5, 3990902), (10, 1995451), (1231, 16210), (1621, 12310), (2462, 8105), (3242, 6155)]