72321893

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 91008000

約数和(自身を除く): 18686107

約数列:

[1, 7, 17, 49, 79, 119, 157, 343, 553, 833, 1099, 1343, 2669, 3871, 5831, 7693, 9401, 12403, 18683, 27097, 53851, 65807, 86821, 130781, 210851, 460649, 607747, 915467, 1475957, 4254229, 10331699, 72321893]

約数ペア:

[(1, 72321893), (7, 10331699), (17, 4254229), (49, 1475957), (79, 915467), (119, 607747), (157, 460649), (343, 210851), (553, 130781), (833, 86821), (1099, 65807), (1343, 53851), (2669, 27097), (3871, 18683), (5831, 12403), (7693, 9401)]