20856186

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4691}}^1$

素因数の和:4731

約数の個数: 48

約数和(自身を含む): 51236640

約数和(自身を除く): 30380454

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 342, 494, 741, 1482, 2223, 4446, 4691, 9382, 14073, 28146, 42219, 60983, 84438, 89129, 121966, 178258, 182949, 267387, 365898, 534774, 548847, 802161, 1097694, 1158677, 1604322, 2317354, 3476031, 6952062, 10428093, 20856186]

約数ペア:

[(1, 20856186), (2, 10428093), (3, 6952062), (6, 3476031), (9, 2317354), (13, 1604322), (18, 1158677), (19, 1097694), (26, 802161), (38, 548847), (39, 534774), (57, 365898), (78, 267387), (114, 182949), (117, 178258), (171, 121966), (234, 89129), (247, 84438), (342, 60983), (494, 42219), (741, 28146), (1482, 14073), (2223, 9382), (4446, 4691)]