20013135

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 33374208

約数和(自身を除く): 13361073

約数列:

[1, 3, 5, 15, 31, 93, 155, 193, 223, 465, 579, 669, 965, 1115, 2895, 3345, 5983, 6913, 17949, 20739, 29915, 34565, 43039, 89745, 103695, 129117, 215195, 645585, 1334209, 4002627, 6671045, 20013135]

約数ペア:

[(1, 20013135), (3, 6671045), (5, 4002627), (15, 1334209), (31, 645585), (93, 215195), (155, 129117), (193, 103695), (223, 89745), (465, 43039), (579, 34565), (669, 29915), (965, 20739), (1115, 17949), (2895, 6913), (3345, 5983)]