81701991

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{24469}}^1$

素因数の和:24535

約数の個数: 24

約数和(自身を含む): 137423520

約数和(自身を除く): 55721529

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 24469, 73407, 171283, 220221, 513849, 1296857, 1541547, 3890571, 9077999, 11671713, 27233997, 81701991]

約数ペア:

[(1, 81701991), (3, 27233997), (7, 11671713), (9, 9077999), (21, 3890571), (53, 1541547), (63, 1296857), (159, 513849), (371, 220221), (477, 171283), (1113, 73407), (3339, 24469)]