11991395

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 16285536

約数和(自身を除く): 4294141

約数列:

[1, 5, 13, 23, 65, 115, 169, 299, 617, 845, 1495, 3085, 3887, 8021, 14191, 19435, 40105, 70955, 104273, 184483, 521365, 922415, 2398279, 11991395]

約数ペア:

[(1, 11991395), (5, 2398279), (13, 922415), (23, 521365), (65, 184483), (115, 104273), (169, 70955), (299, 40105), (617, 19435), (845, 14191), (1495, 8021), (3085, 3887)]