86972221

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1\times {\mathrm{1453}}^1$

素因数の和:1980

約数の個数: 16

約数和(自身を含む): 105525504

約数和(自身を除く): 18553283

約数列:

[1, 7, 17, 119, 503, 1453, 3521, 8551, 10171, 24701, 59857, 172907, 730859, 5116013, 12424603, 86972221]

約数ペア:

[(1, 86972221), (7, 12424603), (17, 5116013), (119, 730859), (503, 172907), (1453, 59857), (3521, 24701), (8551, 10171)]