20995550

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{18257}}^1$

素因数の和:18292

約数の個数: 24

約数和(自身を含む): 40751856

約数和(自身を除く): 19756306

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 18257, 36514, 91285, 182570, 419911, 456425, 839822, 912850, 2099555, 4199110, 10497775, 20995550]

約数ペア:

[(1, 20995550), (2, 10497775), (5, 4199110), (10, 2099555), (23, 912850), (25, 839822), (46, 456425), (50, 419911), (115, 182570), (230, 91285), (575, 36514), (1150, 18257)]