20504664

素因数分解:

$2^3\times 3^4\times {\mathrm{31643}}^1$

素因数の和:31661

約数の個数: 40

約数和(自身を含む): 57433860

約数和(自身を除く): 36929196

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31643, 63286, 94929, 126572, 189858, 253144, 284787, 379716, 569574, 759432, 854361, 1139148, 1708722, 2278296, 2563083, 3417444, 5126166, 6834888, 10252332, 20504664]

約数ペア:

[(1, 20504664), (2, 10252332), (3, 6834888), (4, 5126166), (6, 3417444), (8, 2563083), (9, 2278296), (12, 1708722), (18, 1139148), (24, 854361), (27, 759432), (36, 569574), (54, 379716), (72, 284787), (81, 253144), (108, 189858), (162, 126572), (216, 94929), (324, 63286), (648, 31643)]