21070294588

素因数分解:

$2^2\times 7^2\times {\mathrm{107501503}}^1$

素因数の和:107501521

約数の個数: 18

約数和(自身を含む): 42893100096

約数和(自身を除く): 21822805508

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 107501503, 215003006, 430006012, 752510521, 1505021042, 3010042084, 5267573647, 10535147294, 21070294588]

約数ペア:

[(1, 21070294588), (2, 10535147294), (4, 5267573647), (7, 3010042084), (14, 1505021042), (28, 752510521), (49, 430006012), (98, 215003006), (196, 107501503)]