21310065

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67651}}^1$

素因数の和:67669

約数の個数: 24

約数和(自身を含む): 42214848

約数和(自身を除く): 20904783

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 67651, 202953, 338255, 473557, 608859, 1014765, 1420671, 2367785, 3044295, 4262013, 7103355, 21310065]

約数ペア:

[(1, 21310065), (3, 7103355), (5, 4262013), (7, 3044295), (9, 2367785), (15, 1420671), (21, 1014765), (35, 608859), (45, 473557), (63, 338255), (105, 202953), (315, 67651)]