20121682987

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{691}}^1\times {\mathrm{244703}}^1$

素因数の和:245418

約数の個数: 16

約数和(自身を含む): 24384264192

約数和(自身を除く): 4262581205

約数列:

[1, 7, 17, 119, 691, 4837, 11747, 82229, 244703, 1712921, 4159951, 29119657, 169089773, 1183628411, 2874526141, 20121682987]

約数ペア:

[(1, 20121682987), (7, 2874526141), (17, 1183628411), (119, 169089773), (691, 29119657), (4837, 4159951), (11747, 1712921), (82229, 244703)]