21166855

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2297}}^1$

素因数の和:2418

約数の個数: 16

約数和(自身を含む): 27024480

約数和(自身を除く): 5857625

約数列:

[1, 5, 19, 95, 97, 485, 1843, 2297, 9215, 11485, 43643, 218215, 222809, 1114045, 4233371, 21166855]

約数ペア:

[(1, 21166855), (5, 4233371), (19, 1114045), (95, 222809), (97, 218215), (485, 43643), (1843, 11485), (2297, 9215)]