21719278

素因数分解:

$2^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{13729}}^1$

素因数の和:13851

約数の個数: 16

約数和(自身を含む): 37565280

約数和(自身を除く): 15846002

約数列:

[1, 2, 7, 14, 113, 226, 791, 1582, 13729, 27458, 96103, 192206, 1551377, 3102754, 10859639, 21719278]

約数ペア:

[(1, 21719278), (2, 10859639), (7, 3102754), (14, 1551377), (113, 192206), (226, 96103), (791, 27458), (1582, 13729)]