20820690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21031}}^1$

素因数の和:21055

約数の個数: 48

約数和(自身を含む): 59057856

約数和(自身を除く): 38237166

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21031, 42062, 63093, 105155, 126186, 189279, 210310, 231341, 315465, 378558, 462682, 630930, 694023, 946395, 1156705, 1388046, 1892790, 2082069, 2313410, 3470115, 4164138, 6940230, 10410345, 20820690]

約数ペア:

[(1, 20820690), (2, 10410345), (3, 6940230), (5, 4164138), (6, 3470115), (9, 2313410), (10, 2082069), (11, 1892790), (15, 1388046), (18, 1156705), (22, 946395), (30, 694023), (33, 630930), (45, 462682), (55, 378558), (66, 315465), (90, 231341), (99, 210310), (110, 189279), (165, 126186), (198, 105155), (330, 63093), (495, 42062), (990, 21031)]