20653810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{121493}}^1$

素因数の和:121517

約数の個数: 16

約数和(自身を含む): 39364056

約数和(自身を除く): 18710246

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 121493, 242986, 607465, 1214930, 2065381, 4130762, 10326905, 20653810]

約数ペア:

[(1, 20653810), (2, 10326905), (5, 4130762), (10, 2065381), (17, 1214930), (34, 607465), (85, 242986), (170, 121493)]