21911169

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{14293}}^1$

素因数の和:14376

約数の個数: 16

約数和(自身を含む): 33848192

約数和(自身を除く): 11937023

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 14293, 42879, 100051, 300153, 1043389, 3130167, 7303723, 21911169]

約数ペア:

[(1, 21911169), (3, 7303723), (7, 3130167), (21, 1043389), (73, 300153), (219, 100051), (511, 42879), (1533, 14293)]