20555905

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{4831}}^1$

素因数の和:4896

約数の個数: 16

約数和(自身を含む): 26440704

約数和(自身を除く): 5884799

約数列:

[1, 5, 23, 37, 115, 185, 851, 4255, 4831, 24155, 111113, 178747, 555565, 893735, 4111181, 20555905]

約数ペア:

[(1, 20555905), (5, 4111181), (23, 893735), (37, 555565), (115, 178747), (185, 111113), (851, 24155), (4255, 4831)]