20547995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3259}}^1$

素因数の和:3374

約数の個数: 16

約数和(自身を含む): 26836320

約数和(自身を除く): 6288325

約数列:

[1, 5, 13, 65, 97, 485, 1261, 3259, 6305, 16295, 42367, 211835, 316123, 1580615, 4109599, 20547995]

約数ペア:

[(1, 20547995), (5, 4109599), (13, 1580615), (65, 316123), (97, 211835), (485, 42367), (1261, 16295), (3259, 6305)]