21497279041

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1569259}}^1$

素因数の和:1569388

約数の個数: 16

約数和(自身を含む): 26112486400

約数和(自身を除く): 4615207359

約数列:

[1, 7, 19, 103, 133, 721, 1957, 13699, 1569259, 10984813, 29815921, 161633677, 208711447, 1131435739, 3071039863, 21497279041]

約数ペア:

[(1, 21497279041), (7, 3071039863), (19, 1131435739), (103, 208711447), (133, 161633677), (721, 29815921), (1957, 10984813), (13699, 1569259)]