19912216

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{67271}}^1$

素因数の和:67314

約数の個数: 16

約数和(自身を含む): 38345040

約数和(自身を除く): 18432824

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 67271, 134542, 269084, 538168, 2489027, 4978054, 9956108, 19912216]

約数ペア:

[(1, 19912216), (2, 9956108), (4, 4978054), (8, 2489027), (37, 538168), (74, 269084), (148, 134542), (296, 67271)]