71939007

素因数分解:

$3^2\times 7^2\times {\mathrm{163127}}^1$

素因数の和:163147

約数の個数: 18

約数和(自身を含む): 120877848

約数和(自身を除く): 48938841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 163127, 489381, 1141889, 1468143, 3425667, 7993223, 10277001, 23979669, 71939007]

約数ペア:

[(1, 71939007), (3, 23979669), (7, 10277001), (9, 7993223), (21, 3425667), (49, 1468143), (63, 1141889), (147, 489381), (441, 163127)]