21951370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{563}}^1$

素因数の和:1134

約数の個数: 32

約数和(自身を含む): 45318528

約数和(自身を除く): 23367158

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 557, 563, 1114, 1126, 2785, 2815, 3899, 3941, 5570, 5630, 7798, 7882, 19495, 19705, 38990, 39410, 313591, 627182, 1567955, 2195137, 3135910, 4390274, 10975685, 21951370]

約数ペア:

[(1, 21951370), (2, 10975685), (5, 4390274), (7, 3135910), (10, 2195137), (14, 1567955), (35, 627182), (70, 313591), (557, 39410), (563, 38990), (1114, 19705), (1126, 19495), (2785, 7882), (2815, 7798), (3899, 5630), (3941, 5570)]