21879363

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 33126912

約数和(自身を除く): 11247549

約数列:

[1, 3, 11, 33, 41, 103, 123, 157, 309, 451, 471, 1133, 1353, 1727, 3399, 4223, 5181, 6437, 12669, 16171, 19311, 46453, 48513, 70807, 139359, 177881, 212421, 533643, 663011, 1989033, 7293121, 21879363]

約数ペア:

[(1, 21879363), (3, 7293121), (11, 1989033), (33, 663011), (41, 533643), (103, 212421), (123, 177881), (157, 139359), (309, 70807), (451, 48513), (471, 46453), (1133, 19311), (1353, 16171), (1727, 12669), (3399, 6437), (4223, 5181)]