20571471

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2039}}^1$

素因数の和:2123

約数の個数: 24

約数和(自身を含む): 31824000

約数和(自身を除く): 11252529

約数列:

[1, 3, 9, 19, 57, 59, 171, 177, 531, 1121, 2039, 3363, 6117, 10089, 18351, 38741, 116223, 120301, 348669, 360903, 1082709, 2285719, 6857157, 20571471]

約数ペア:

[(1, 20571471), (3, 6857157), (9, 2285719), (19, 1082709), (57, 360903), (59, 348669), (171, 120301), (177, 116223), (531, 38741), (1121, 18351), (2039, 10089), (3363, 6117)]