20702415

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{2609}}^1$

素因数の和:2663

約数の個数: 24

約数和(自身を含む): 34639920

約数和(自身を除く): 13937505

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 529, 1587, 2609, 2645, 7827, 7935, 13045, 39135, 60007, 180021, 300035, 900105, 1380161, 4140483, 6900805, 20702415]

約数ペア:

[(1, 20702415), (3, 6900805), (5, 4140483), (15, 1380161), (23, 900105), (69, 300035), (115, 180021), (345, 60007), (529, 39135), (1587, 13045), (2609, 7935), (2645, 7827)]