19788385

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2969}}^1$

素因数の和:3048

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 5302175

約数列:

[1, 5, 31, 43, 155, 215, 1333, 2969, 6665, 14845, 92039, 127667, 460195, 638335, 3957677, 19788385]

約数ペア:

[(1, 19788385), (5, 3957677), (31, 638335), (43, 460195), (155, 127667), (215, 92039), (1333, 14845), (2969, 6665)]