20456821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11551}}^1$

素因数の和:11592

約数の個数: 16

約数和(自身を含む): 26615808

約数和(自身を除く): 6158987

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11551, 80857, 127061, 265673, 889427, 1859711, 2922403, 20456821]

約数ペア:

[(1, 20456821), (7, 2922403), (11, 1859711), (23, 889427), (77, 265673), (161, 127061), (253, 80857), (1771, 11551)]