221314288

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{81847}}^1$

素因数の和:81881

約数の個数: 30

約数和(自身を含む): 464323704

約数和(自身を除く): 243009416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 81847, 163694, 327388, 654776, 1064011, 1309552, 2128022, 4256044, 8512088, 13832143, 17024176, 27664286, 55328572, 110657144, 221314288]

約数ペア:

[(1, 221314288), (2, 110657144), (4, 55328572), (8, 27664286), (13, 17024176), (16, 13832143), (26, 8512088), (52, 4256044), (104, 2128022), (169, 1309552), (208, 1064011), (338, 654776), (676, 327388), (1352, 163694), (2704, 81847)]