20407178

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{48821}}^1$

素因数の和:48853

約数の個数: 16

約数和(自身を含む): 35151840

約数和(自身を除く): 14744662

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 48821, 97642, 537031, 927599, 1074062, 1855198, 10203589, 20407178]

約数ペア:

[(1, 20407178), (2, 10203589), (11, 1855198), (19, 1074062), (22, 927599), (38, 537031), (209, 97642), (418, 48821)]