21081086

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 14723074

約数列:

[1, 2, 13, 26, 29, 58, 73, 146, 377, 383, 754, 766, 949, 1898, 2117, 4234, 4979, 9958, 11107, 22214, 27521, 27959, 55042, 55918, 144391, 288782, 363467, 726934, 810811, 1621622, 10540543, 21081086]

約数ペア:

[(1, 21081086), (2, 10540543), (13, 1621622), (26, 810811), (29, 726934), (58, 363467), (73, 288782), (146, 144391), (377, 55918), (383, 55042), (754, 27959), (766, 27521), (949, 22214), (1898, 11107), (2117, 9958), (4234, 4979)]