20618409

素因数分解:

$3^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1297}}^1$

素因数の和:2064

約数の個数: 16

約数和(自身を含む): 31484288

約数和(自身を除く): 10865879

約数列:

[1, 3, 7, 21, 757, 1297, 2271, 3891, 5299, 9079, 15897, 27237, 981829, 2945487, 6872803, 20618409]

約数ペア:

[(1, 20618409), (3, 6872803), (7, 2945487), (21, 981829), (757, 27237), (1297, 15897), (2271, 9079), (3891, 5299)]