21271161608

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39685003}}^1$

素因数の和:39685076

約数の個数: 16

約数和(自身を含む): 40478704080

約数和(自身を除く): 19207542472

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39685003, 79370006, 158740012, 317480024, 2658895201, 5317790402, 10635580804, 21271161608]

約数ペア:

[(1, 21271161608), (2, 10635580804), (4, 5317790402), (8, 2658895201), (67, 317480024), (134, 158740012), (268, 79370006), (536, 39685003)]