18539144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{178261}}^1$

素因数の和:178280

約数の個数: 16

約数和(自身を含む): 37435020

約数和(自身を除く): 18895876

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 178261, 356522, 713044, 1426088, 2317393, 4634786, 9269572, 18539144]

約数ペア:

[(1, 18539144), (2, 9269572), (4, 4634786), (8, 2317393), (13, 1426088), (26, 713044), (52, 356522), (104, 178261)]