21163130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124489}}^1$

素因数の和:124513

約数の個数: 16

約数和(自身を含む): 40334760

約数和(自身を除く): 19171630

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124489, 248978, 622445, 1244890, 2116313, 4232626, 10581565, 21163130]

約数ペア:

[(1, 21163130), (2, 10581565), (5, 4232626), (10, 2116313), (17, 1244890), (34, 622445), (85, 248978), (170, 124489)]