21781676

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5849}}^1$

素因数の和:5886

約数の個数: 36

約数和(自身を含む): 46683000

約数和(自身を除く): 24901324

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5849, 11698, 23396, 40943, 81886, 111131, 163772, 222262, 286601, 444524, 573202, 777917, 1146404, 1555834, 3111668, 5445419, 10890838, 21781676]

約数ペア:

[(1, 21781676), (2, 10890838), (4, 5445419), (7, 3111668), (14, 1555834), (19, 1146404), (28, 777917), (38, 573202), (49, 444524), (76, 286601), (98, 222262), (133, 163772), (196, 111131), (266, 81886), (532, 40943), (931, 23396), (1862, 11698), (3724, 5849)]