21131458

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{1549}}^1$

素因数の和:1929

約数の個数: 16

約数和(自身を含む): 33480000

約数和(自身を除く): 12348542

約数列:

[1, 2, 19, 38, 359, 718, 1549, 3098, 6821, 13642, 29431, 58862, 556091, 1112182, 10565729, 21131458]

約数ペア:

[(1, 21131458), (2, 10565729), (19, 1112182), (38, 556091), (359, 58862), (718, 29431), (1549, 13642), (3098, 6821)]