21655473

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{3359}}^1$

素因数の和:3676

約数の個数: 16

約数和(自身を含む): 33116160

約数和(自身を除く): 11460687

約数列:

[1, 3, 7, 21, 307, 921, 2149, 3359, 6447, 10077, 23513, 70539, 1031213, 3093639, 7218491, 21655473]

約数ペア:

[(1, 21655473), (3, 7218491), (7, 3093639), (21, 1031213), (307, 70539), (921, 23513), (2149, 10077), (3359, 6447)]