71856841

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 93208320

約数和(自身を除く): 21351479

約数列:

[1, 7, 17, 19, 61, 119, 133, 323, 427, 521, 1037, 1159, 2261, 3647, 7259, 8113, 8857, 9899, 19703, 31781, 61999, 69293, 137921, 168283, 222467, 540277, 603839, 1177981, 3781939, 4226873, 10265263, 71856841]

約数ペア:

[(1, 71856841), (7, 10265263), (17, 4226873), (19, 3781939), (61, 1177981), (119, 603839), (133, 540277), (323, 222467), (427, 168283), (521, 137921), (1037, 69293), (1159, 61999), (2261, 31781), (3647, 19703), (7259, 9899), (8113, 8857)]