21557236

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1289}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 39117960

約数和(自身を除く): 17560724

約数列:

[1, 2, 4, 37, 74, 113, 148, 226, 452, 1289, 2578, 4181, 5156, 8362, 16724, 47693, 95386, 145657, 190772, 291314, 582628, 5389309, 10778618, 21557236]

約数ペア:

[(1, 21557236), (2, 10778618), (4, 5389309), (37, 582628), (74, 291314), (113, 190772), (148, 145657), (226, 95386), (452, 47693), (1289, 16724), (2578, 8362), (4181, 5156)]