20918205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6037}}^1$

素因数の和:6066

約数の個数: 48

約数和(自身を含む): 45212544

約数和(自身を除く): 24294339

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6037, 18111, 30185, 42259, 54333, 66407, 90555, 126777, 199221, 211295, 271665, 332035, 380331, 464849, 597663, 633885, 996105, 1394547, 1901655, 2324245, 2988315, 4183641, 6972735, 20918205]

約数ペア:

[(1, 20918205), (3, 6972735), (5, 4183641), (7, 2988315), (9, 2324245), (11, 1901655), (15, 1394547), (21, 996105), (33, 633885), (35, 597663), (45, 464849), (55, 380331), (63, 332035), (77, 271665), (99, 211295), (105, 199221), (165, 126777), (231, 90555), (315, 66407), (385, 54333), (495, 42259), (693, 30185), (1155, 18111), (3465, 6037)]