18453136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1123}}^1$

素因数の和:1223

約数の個数: 40

約数和(自身を含む): 39025280

約数和(自身を除く): 20572144

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 158, 208, 316, 632, 1027, 1123, 1264, 2054, 2246, 4108, 4492, 8216, 8984, 14599, 16432, 17968, 29198, 58396, 88717, 116792, 177434, 233584, 354868, 709736, 1153321, 1419472, 2306642, 4613284, 9226568, 18453136]

約数ペア:

[(1, 18453136), (2, 9226568), (4, 4613284), (8, 2306642), (13, 1419472), (16, 1153321), (26, 709736), (52, 354868), (79, 233584), (104, 177434), (158, 116792), (208, 88717), (316, 58396), (632, 29198), (1027, 17968), (1123, 16432), (1264, 14599), (2054, 8984), (2246, 8216), (4108, 4492)]