21888783

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2213}}^1$

素因数の和:2383

約数の個数: 24

約数和(自身を含む): 36380448

約数和(自身を除く): 14491665

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 1099, 1413, 2213, 3297, 6639, 9891, 15491, 19917, 46473, 139419, 347441, 1042323, 2432087, 3126969, 7296261, 21888783]

約数ペア:

[(1, 21888783), (3, 7296261), (7, 3126969), (9, 2432087), (21, 1042323), (63, 347441), (157, 139419), (471, 46473), (1099, 19917), (1413, 15491), (2213, 9891), (3297, 6639)]