20018913

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{2237}}^1$

素因数の和:2416

約数の個数: 16

約数和(自身を含む): 28288320

約数和(自身を除く): 8269407

約数列:

[1, 3, 19, 57, 157, 471, 2237, 2983, 6711, 8949, 42503, 127509, 351209, 1053627, 6672971, 20018913]

約数ペア:

[(1, 20018913), (3, 6672971), (19, 1053627), (57, 351209), (157, 127509), (471, 42503), (2237, 8949), (2983, 6711)]