20018047

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{683}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 3620993

約数列:

[1, 7, 53, 79, 371, 553, 683, 4187, 4781, 29309, 36199, 53957, 253393, 377699, 2859721, 20018047]

約数ペア:

[(1, 20018047), (7, 2859721), (53, 377699), (79, 253393), (371, 53957), (553, 36199), (683, 29309), (4187, 4781)]