81211091

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1229}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 97238880

約数和(自身を除く): 16027789

約数列:

[1, 13, 17, 23, 169, 221, 299, 391, 1229, 2873, 3887, 5083, 15977, 20893, 28267, 66079, 207701, 271609, 367471, 480539, 3530917, 4777123, 6247007, 81211091]

約数ペア:

[(1, 81211091), (13, 6247007), (17, 4777123), (23, 3530917), (169, 480539), (221, 367471), (299, 271609), (391, 207701), (1229, 66079), (2873, 28267), (3887, 20893), (5083, 15977)]