21092489

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2347}}^1$

素因数の和:2420

約数の個数: 16

約数和(自身を含む): 24794880

約数和(自身を除く): 3702391

約数列:

[1, 11, 19, 43, 209, 473, 817, 2347, 8987, 25817, 44593, 100921, 490523, 1110131, 1917499, 21092489]

約数ペア:

[(1, 21092489), (11, 1917499), (19, 1110131), (43, 490523), (209, 100921), (473, 44593), (817, 25817), (2347, 8987)]