20955963

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{8831}}^1$

素因数の和:8954

約数の個数: 16

約数和(自身を含む): 32219136

約数和(自身を除く): 11263173

約数列:

[1, 3, 7, 21, 113, 339, 791, 2373, 8831, 26493, 61817, 185451, 997903, 2993709, 6985321, 20955963]

約数ペア:

[(1, 20955963), (3, 6985321), (7, 2993709), (21, 997903), (113, 185451), (339, 61817), (791, 26493), (2373, 8831)]