19474090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21881}}^1$

素因数の和:21977

約数の個数: 16

約数和(自身を含む): 35448840

約数和(自身を除く): 15974750

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21881, 43762, 109405, 218810, 1947409, 3894818, 9737045, 19474090]

約数ペア:

[(1, 19474090), (2, 9737045), (5, 3894818), (10, 1947409), (89, 218810), (178, 109405), (445, 43762), (890, 21881)]