21290901

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{2423}}^1$

素因数の和:2556

約数の個数: 16

約数和(自身を含む): 29669760

約数和(自身を除く): 8378859

約数列:

[1, 3, 29, 87, 101, 303, 2423, 2929, 7269, 8787, 70267, 210801, 244723, 734169, 7096967, 21290901]

約数ペア:

[(1, 21290901), (3, 7096967), (29, 734169), (87, 244723), (101, 210801), (303, 70267), (2423, 8787), (2929, 7269)]