71878737

素因数分解:

$3^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{587}}^1$

素因数の和:635

約数の個数: 40

約数和(自身を含む): 118583136

約数和(自身を除く): 46704399

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 343, 357, 587, 833, 1029, 1761, 2401, 2499, 4109, 5831, 7203, 9979, 12327, 17493, 28763, 29937, 40817, 69853, 86289, 122451, 201341, 209559, 488971, 604023, 1409387, 1466913, 3422797, 4228161, 10268391, 23959579, 71878737]

約数ペア:

[(1, 71878737), (3, 23959579), (7, 10268391), (17, 4228161), (21, 3422797), (49, 1466913), (51, 1409387), (119, 604023), (147, 488971), (343, 209559), (357, 201341), (587, 122451), (833, 86289), (1029, 69853), (1761, 40817), (2401, 29937), (2499, 28763), (4109, 17493), (5831, 12327), (7203, 9979)]