19957004

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{919}}^1$

素因数の和:1073

約数の個数: 24

約数和(自身を含む): 35935200

約数和(自身を除く): 15978196

約数列:

[1, 2, 4, 61, 89, 122, 178, 244, 356, 919, 1838, 3676, 5429, 10858, 21716, 56059, 81791, 112118, 163582, 224236, 327164, 4989251, 9978502, 19957004]

約数ペア:

[(1, 19957004), (2, 9978502), (4, 4989251), (61, 327164), (89, 224236), (122, 163582), (178, 112118), (244, 81791), (356, 56059), (919, 21716), (1838, 10858), (3676, 5429)]