21827405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{523}}^1$

素因数の和:1036

約数の個数: 16

約数和(自身を含む): 27843264

約数和(自身を除く): 6015859

約数列:

[1, 5, 17, 85, 491, 523, 2455, 2615, 8347, 8891, 41735, 44455, 256793, 1283965, 4365481, 21827405]

約数ペア:

[(1, 21827405), (5, 4365481), (17, 1283965), (85, 256793), (491, 44455), (523, 41735), (2455, 8891), (2615, 8347)]