20639646

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{27967}}^1$

素因数の和:28016

約数の個数: 24

約数和(自身を含む): 45811584

約数和(自身を除く): 25171938

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 27967, 55934, 83901, 167802, 251703, 503406, 1146647, 2293294, 3439941, 6879882, 10319823, 20639646]

約数ペア:

[(1, 20639646), (2, 10319823), (3, 6879882), (6, 3439941), (9, 2293294), (18, 1146647), (41, 503406), (82, 251703), (123, 167802), (246, 83901), (369, 55934), (738, 27967)]