20165805

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40739}}^1$

素因数の和:40761

約数の個数: 24

約数和(自身を含む): 38132640

約数和(自身を除く): 17966835

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 40739, 122217, 203695, 366651, 448129, 611085, 1344387, 1833255, 2240645, 4033161, 6721935, 20165805]

約数ペア:

[(1, 20165805), (3, 6721935), (5, 4033161), (9, 2240645), (11, 1833255), (15, 1344387), (33, 611085), (45, 448129), (55, 366651), (99, 203695), (165, 122217), (495, 40739)]