20782214

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{4243}}^1$

素因数の和:4355

約数の個数: 16

約数和(自身を含む): 32593920

約数和(自身を除く): 11811706

約数列:

[1, 2, 31, 62, 79, 158, 2449, 4243, 4898, 8486, 131533, 263066, 335197, 670394, 10391107, 20782214]

約数ペア:

[(1, 20782214), (2, 10391107), (31, 670394), (62, 335197), (79, 263066), (158, 131533), (2449, 8486), (4243, 4898)]