17970205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{823}}^1$

素因数の和:1236

約数の個数: 16

約数和(自身を含む): 23612544

約数和(自身を除く): 5642339

約数列:

[1, 5, 11, 55, 397, 823, 1985, 4115, 4367, 9053, 21835, 45265, 326731, 1633655, 3594041, 17970205]

約数ペア:

[(1, 17970205), (5, 3594041), (11, 1633655), (55, 326731), (397, 45265), (823, 21835), (1985, 9053), (4115, 4367)]