21162110

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{443}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 40567392

約数和(自身を除く): 19405282

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 281, 443, 562, 886, 1405, 2215, 2810, 4430, 4777, 7531, 9554, 15062, 23885, 37655, 47770, 75310, 124483, 248966, 622415, 1244830, 2116211, 4232422, 10581055, 21162110]

約数ペア:

[(1, 21162110), (2, 10581055), (5, 4232422), (10, 2116211), (17, 1244830), (34, 622415), (85, 248966), (170, 124483), (281, 75310), (443, 47770), (562, 37655), (886, 23885), (1405, 15062), (2215, 9554), (2810, 7531), (4430, 4777)]