18505136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2069}}^1$

素因数の和:2133

約数の個数: 40

約数和(自身を含む): 39528720

約数和(自身を除く): 21023584

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2069, 2236, 4138, 4472, 8276, 8944, 16552, 26897, 33104, 53794, 88967, 107588, 177934, 215176, 355868, 430352, 711736, 1156571, 1423472, 2313142, 4626284, 9252568, 18505136]

約数ペア:

[(1, 18505136), (2, 9252568), (4, 4626284), (8, 2313142), (13, 1423472), (16, 1156571), (26, 711736), (43, 430352), (52, 355868), (86, 215176), (104, 177934), (172, 107588), (208, 88967), (344, 53794), (559, 33104), (688, 26897), (1118, 16552), (2069, 8944), (2236, 8276), (4138, 4472)]