20963895

素因数分解:

$3^1\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1627}}^1$

素因数の和:2494

約数の個数: 16

約数和(自身を含む): 33601920

約数和(自身を除く): 12638025

約数列:

[1, 3, 5, 15, 859, 1627, 2577, 4295, 4881, 8135, 12885, 24405, 1397593, 4192779, 6987965, 20963895]

約数ペア:

[(1, 20963895), (3, 6987965), (5, 4192779), (15, 1397593), (859, 24405), (1627, 12885), (2577, 8135), (4295, 4881)]