71657217

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{21577}}^1$

素因数の和:21630

約数の個数: 20

約数和(自身を含む): 109659396

約数和(自身を除く): 38002179

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 21577, 64731, 194193, 582579, 884657, 1747737, 2653971, 7961913, 23885739, 71657217]

約数ペア:

[(1, 71657217), (3, 23885739), (9, 7961913), (27, 2653971), (41, 1747737), (81, 884657), (123, 582579), (369, 194193), (1107, 64731), (3321, 21577)]