21474321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{3407}}^1$

素因数の和:3612

約数の個数: 16

約数和(自身を含む): 31408128

約数和(自身を除く): 9933807

約数列:

[1, 3, 11, 33, 191, 573, 2101, 3407, 6303, 10221, 37477, 112431, 650737, 1952211, 7158107, 21474321]

約数ペア:

[(1, 21474321), (3, 7158107), (11, 1952211), (33, 650737), (191, 112431), (573, 37477), (2101, 10221), (3407, 6303)]