18444010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{421}}^1$

素因数の和:778

約数の個数: 32

約数和(自身を含む): 35944272

約数和(自身を除く): 17500262

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 337, 421, 674, 842, 1685, 2105, 3370, 4210, 4381, 5473, 8762, 10946, 21905, 27365, 43810, 54730, 141877, 283754, 709385, 1418770, 1844401, 3688802, 9222005, 18444010]

約数ペア:

[(1, 18444010), (2, 9222005), (5, 3688802), (10, 1844401), (13, 1418770), (26, 709385), (65, 283754), (130, 141877), (337, 54730), (421, 43810), (674, 27365), (842, 21905), (1685, 10946), (2105, 8762), (3370, 5473), (4210, 4381)]