15642801

素因数分解:

$3^4\times {\mathrm{313}}^1\times {\mathrm{617}}^1$

素因数の和:942

約数の個数: 20

約数和(自身を含む): 23480292

約数和(自身を除く): 7837491

約数列:

[1, 3, 9, 27, 81, 313, 617, 939, 1851, 2817, 5553, 8451, 16659, 25353, 49977, 193121, 579363, 1738089, 5214267, 15642801]

約数ペア:

[(1, 15642801), (3, 5214267), (9, 1738089), (27, 579363), (81, 193121), (313, 49977), (617, 25353), (939, 16659), (1851, 8451), (2817, 5553)]