21396501505

素因数分解:

$5^1\times {\mathrm{431}}^1\times {\mathrm{683}}^1\times {\mathrm{14537}}^1$

素因数の和:15656

約数の個数: 16

約数和(自身を含む): 25774827264

約数和(自身を除く): 4378325759

約数列:

[1, 5, 431, 683, 2155, 3415, 14537, 72685, 294373, 1471865, 6265447, 9928771, 31327235, 49643855, 4279300301, 21396501505]

約数ペア:

[(1, 21396501505), (5, 4279300301), (431, 49643855), (683, 31327235), (2155, 9928771), (3415, 6265447), (14537, 1471865), (72685, 294373)]