81021598

素因数分解:

$2^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{2693}}^1$

素因数の和:3016

約数の個数: 24

約数和(自身を含む): 141887592

約数和(自身を除く): 60865994

約数列:

[1, 2, 7, 14, 49, 98, 307, 614, 2149, 2693, 4298, 5386, 15043, 18851, 30086, 37702, 131957, 263914, 826751, 1653502, 5787257, 11574514, 40510799, 81021598]

約数ペア:

[(1, 81021598), (2, 40510799), (7, 11574514), (14, 5787257), (49, 1653502), (98, 826751), (307, 263914), (614, 131957), (2149, 37702), (2693, 30086), (4298, 18851), (5386, 15043)]