21158403

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{17077}}^1$

素因数の和:17146

約数の個数: 16

約数和(自身を含む): 32789760

約数和(自身を除く): 11631357

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 17077, 51231, 119539, 358617, 1007543, 3022629, 7052801, 21158403]

約数ペア:

[(1, 21158403), (3, 7052801), (7, 3022629), (21, 1007543), (59, 358617), (177, 119539), (413, 51231), (1239, 17077)]