21729239

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{433}}^1$

素因数の和:614

約数の個数: 16

約数和(自身を含む): 25498368

約数和(自身を除く): 3769129

約数列:

[1, 7, 67, 107, 433, 469, 749, 3031, 7169, 29011, 46331, 50183, 203077, 324317, 3104177, 21729239]

約数ペア:

[(1, 21729239), (7, 3104177), (67, 324317), (107, 203077), (433, 50183), (469, 46331), (749, 29011), (3031, 7169)]