128961651

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{2081}}^1$

素因数の和:2331

約数の個数: 32

約数和(自身を含む): 212663808

約数和(自身を除く): 83702157

約数列:

[1, 3, 7, 13, 21, 39, 91, 227, 273, 681, 1589, 2081, 2951, 4767, 6243, 8853, 14567, 20657, 27053, 43701, 61971, 81159, 189371, 472387, 568113, 1417161, 3306709, 6141031, 9920127, 18423093, 42987217, 128961651]

約数ペア:

[(1, 128961651), (3, 42987217), (7, 18423093), (13, 9920127), (21, 6141031), (39, 3306709), (91, 1417161), (227, 568113), (273, 472387), (681, 189371), (1589, 81159), (2081, 61971), (2951, 43701), (4767, 27053), (6243, 20657), (8853, 14567)]