18271838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{617}}^1$

素因数の和:716

約数の個数: 32

約数和(自身を含む): 31770144

約数和(自身を除く): 13498306

約数列:

[1, 2, 13, 17, 26, 34, 67, 134, 221, 442, 617, 871, 1139, 1234, 1742, 2278, 8021, 10489, 14807, 16042, 20978, 29614, 41339, 82678, 136357, 272714, 537407, 702763, 1074814, 1405526, 9135919, 18271838]

約数ペア:

[(1, 18271838), (2, 9135919), (13, 1405526), (17, 1074814), (26, 702763), (34, 537407), (67, 272714), (134, 136357), (221, 82678), (442, 41339), (617, 29614), (871, 20978), (1139, 16042), (1234, 14807), (1742, 10489), (2278, 8021)]