20487621

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2861}}^1$

素因数の和:2913

約数の個数: 32

約数和(自身を含む): 35168256

約数和(自身を除く): 14680635

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 2861, 7161, 8583, 20027, 31471, 60081, 88691, 94413, 220297, 266073, 620837, 660891, 975601, 1862511, 2926803, 6829207, 20487621]

約数ペア:

[(1, 20487621), (3, 6829207), (7, 2926803), (11, 1862511), (21, 975601), (31, 660891), (33, 620837), (77, 266073), (93, 220297), (217, 94413), (231, 88691), (341, 60081), (651, 31471), (1023, 20027), (2387, 8583), (2861, 7161)]