21198183

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{1627}}^1$

素因数の和:1774

約数の個数: 16

約数和(自身を含む): 29225856

約数和(自身を除く): 8027673

約数列:

[1, 3, 43, 101, 129, 303, 1627, 4343, 4881, 13029, 69961, 164327, 209883, 492981, 7066061, 21198183]

約数ペア:

[(1, 21198183), (3, 7066061), (43, 492981), (101, 209883), (129, 164327), (303, 69961), (1627, 13029), (4343, 4881)]