20012139

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1973}}^1$

素因数の和:2016

約数の個数: 36

約数和(自身を含む): 35105616

約数和(自身を除く): 15093477

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 1973, 3381, 5919, 10143, 13811, 17757, 41433, 45379, 96677, 124299, 136137, 290031, 317653, 408411, 870093, 952959, 2223571, 2858877, 6670713, 20012139]

約数ペア:

[(1, 20012139), (3, 6670713), (7, 2858877), (9, 2223571), (21, 952959), (23, 870093), (49, 408411), (63, 317653), (69, 290031), (147, 136137), (161, 124299), (207, 96677), (441, 45379), (483, 41433), (1127, 17757), (1449, 13811), (1973, 10143), (3381, 5919)]