21657237

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{44839}}^1$

素因数の和:44872

約数の個数: 16

約数和(自身を含む): 34437120

約数和(自身を除く): 12779883

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 44839, 134517, 313873, 941619, 1031297, 3093891, 7219079, 21657237]

約数ペア:

[(1, 21657237), (3, 7219079), (7, 3093891), (21, 1031297), (23, 941619), (69, 313873), (161, 134517), (483, 44839)]