21124803

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{7237}}^1$

素因数の和:7386

約数の個数: 16

約数和(自身を含む): 32426240

約数和(自身を除く): 11301437

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 7237, 21711, 50659, 151977, 1005943, 3017829, 7041601, 21124803]

約数ペア:

[(1, 21124803), (3, 7041601), (7, 3017829), (21, 1005943), (139, 151977), (417, 50659), (973, 21711), (2919, 7237)]