20215635

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7207}}^1$

素因数の和:7243

約数の個数: 32

約数和(自身を含む): 37366272

約数和(自身を除く): 17150637

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7207, 21621, 36035, 79277, 108105, 122519, 237831, 367557, 396385, 612595, 1189155, 1347709, 1837785, 4043127, 6738545, 20215635]

約数ペア:

[(1, 20215635), (3, 6738545), (5, 4043127), (11, 1837785), (15, 1347709), (17, 1189155), (33, 612595), (51, 396385), (55, 367557), (85, 237831), (165, 122519), (187, 108105), (255, 79277), (561, 36035), (935, 21621), (2805, 7207)]