20913996

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40531}}^1$

素因数の和:40581

約数の個数: 24

約数和(自身を含む): 49935424

約数和(自身を除く): 29021428

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40531, 81062, 121593, 162124, 243186, 486372, 1742833, 3485666, 5228499, 6971332, 10456998, 20913996]

約数ペア:

[(1, 20913996), (2, 10456998), (3, 6971332), (4, 5228499), (6, 3485666), (12, 1742833), (43, 486372), (86, 243186), (129, 162124), (172, 121593), (258, 81062), (516, 40531)]