4480021

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{541}}^1$

素因数の和:581

約数の個数: 18

約数和(自身を含む): 5653602

約数和(自身を除く): 1173581

約数列:

[1, 7, 13, 49, 91, 169, 541, 637, 1183, 3787, 7033, 8281, 26509, 49231, 91429, 344617, 640003, 4480021]

約数ペア:

[(1, 4480021), (7, 640003), (13, 344617), (49, 91429), (91, 49231), (169, 26509), (541, 8281), (637, 7033), (1183, 3787)]