81389882

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43711}}^1$

素因数の和:43746

約数の個数: 24

約数和(自身を含む): 149495040

約数和(自身を除く): 68105158

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 43711, 87422, 305977, 611954, 830509, 1661018, 2141839, 4283678, 5813563, 11627126, 40694941, 81389882]

約数ペア:

[(1, 81389882), (2, 40694941), (7, 11627126), (14, 5813563), (19, 4283678), (38, 2141839), (49, 1661018), (98, 830509), (133, 611954), (266, 305977), (931, 87422), (1862, 43711)]