21272270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125131}}^1$

素因数の和:125155

約数の個数: 16

約数和(自身を含む): 40542768

約数和(自身を除く): 19270498

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125131, 250262, 625655, 1251310, 2127227, 4254454, 10636135, 21272270]

約数ペア:

[(1, 21272270), (2, 10636135), (5, 4254454), (10, 2127227), (17, 1251310), (34, 625655), (85, 250262), (170, 125131)]