18611089

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3413}}^1$

素因数の和:3480

約数の個数: 16

約数和(自身を含む): 22942080

約数和(自身を除く): 4330991

約数列:

[1, 7, 19, 41, 133, 287, 779, 3413, 5453, 23891, 64847, 139933, 453929, 979531, 2658727, 18611089]

約数ペア:

[(1, 18611089), (7, 2658727), (19, 979531), (41, 453929), (133, 139933), (287, 64847), (779, 23891), (3413, 5453)]