20684818

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7901}}^1$

素因数の和:7938

約数の個数: 32

約数和(自身を含む): 40963968

約数和(自身を除く): 20279150

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 119, 154, 187, 238, 374, 1309, 2618, 7901, 15802, 55307, 86911, 110614, 134317, 173822, 268634, 608377, 940219, 1216754, 1477487, 1880438, 2954974, 10342409, 20684818]

約数ペア:

[(1, 20684818), (2, 10342409), (7, 2954974), (11, 1880438), (14, 1477487), (17, 1216754), (22, 940219), (34, 608377), (77, 268634), (119, 173822), (154, 134317), (187, 110614), (238, 86911), (374, 55307), (1309, 15802), (2618, 7901)]