18278195

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 24103296

約数和(自身を除く): 5825101

約数列:

[1, 5, 13, 65, 97, 169, 223, 485, 845, 1115, 1261, 2899, 6305, 14495, 16393, 21631, 37687, 81965, 108155, 188435, 281203, 1406015, 3655639, 18278195]

約数ペア:

[(1, 18278195), (5, 3655639), (13, 1406015), (65, 281203), (97, 188435), (169, 108155), (223, 81965), (485, 37687), (845, 21631), (1115, 16393), (1261, 14495), (2899, 6305)]