20968533

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2609}}^1$

素因数の和:2681

約数の個数: 24

約数和(自身を含む): 32572800

約数和(自身を除く): 11604267

約数列:

[1, 3, 9, 19, 47, 57, 141, 171, 423, 893, 2609, 2679, 7827, 8037, 23481, 49571, 122623, 148713, 367869, 446139, 1103607, 2329837, 6989511, 20968533]

約数ペア:

[(1, 20968533), (3, 6989511), (9, 2329837), (19, 1103607), (47, 446139), (57, 367869), (141, 148713), (171, 122623), (423, 49571), (893, 23481), (2609, 8037), (2679, 7827)]