20872155

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{599}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 14379045

約数列:

[1, 3, 5, 15, 23, 69, 101, 115, 303, 345, 505, 599, 1515, 1797, 2323, 2995, 6969, 8985, 11615, 13777, 34845, 41331, 60499, 68885, 181497, 206655, 302495, 907485, 1391477, 4174431, 6957385, 20872155]

約数ペア:

[(1, 20872155), (3, 6957385), (5, 4174431), (15, 1391477), (23, 907485), (69, 302495), (101, 206655), (115, 181497), (303, 68885), (345, 60499), (505, 41331), (599, 34845), (1515, 13777), (1797, 11615), (2323, 8985), (2995, 6969)]