21177247

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7507}}^1$

素因数の和:7558

約数の個数: 16

約数和(自身を含む): 26908672

約数和(自身を除く): 5731425

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7507, 52549, 97591, 232717, 683137, 1629019, 3025321, 21177247]

約数ペア:

[(1, 21177247), (7, 3025321), (13, 1629019), (31, 683137), (91, 232717), (217, 97591), (403, 52549), (2821, 7507)]