21231254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41959}}^1$

素因数の和:41995

約数の個数: 16

約数和(自身を含む): 36253440

約数和(自身を除く): 15022186

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41959, 83918, 461549, 923098, 965057, 1930114, 10615627, 21231254]

約数ペア:

[(1, 21231254), (2, 10615627), (11, 1930114), (22, 965057), (23, 923098), (46, 461549), (253, 83918), (506, 41959)]