19990612

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{307}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 35737856

約数和(自身を除く): 15747244

約数列:

[1, 2, 4, 73, 146, 223, 292, 307, 446, 614, 892, 1228, 16279, 22411, 32558, 44822, 65116, 68461, 89644, 136922, 273844, 4997653, 9995306, 19990612]

約数ペア:

[(1, 19990612), (2, 9995306), (4, 4997653), (73, 273844), (146, 136922), (223, 89644), (292, 68461), (307, 65116), (446, 44822), (614, 32558), (892, 22411), (1228, 16279)]