20998966

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{2243}}^1$

素因数の和:2427

約数の個数: 16

約数和(自身を含む): 32744448

約数和(自身を除く): 11745482

約数列:

[1, 2, 31, 62, 151, 302, 2243, 4486, 4681, 9362, 69533, 139066, 338693, 677386, 10499483, 20998966]

約数ペア:

[(1, 20998966), (2, 10499483), (31, 677386), (62, 338693), (151, 139066), (302, 69533), (2243, 9362), (4486, 4681)]