20556687

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{1973}}^1$

素因数の和:2150

約数の個数: 16

約数和(自身を含む): 28804608

約数和(自身を除く): 8247921

約数列:

[1, 3, 23, 69, 151, 453, 1973, 3473, 5919, 10419, 45379, 136137, 297923, 893769, 6852229, 20556687]

約数ペア:

[(1, 20556687), (3, 6852229), (23, 893769), (69, 297923), (151, 136137), (453, 45379), (1973, 10419), (3473, 5919)]