19993295

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18427}}^1$

素因数の和:18470

約数の個数: 16

約数和(自身を含む): 28305408

約数和(自身を除く): 8312113

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18427, 92135, 128989, 571237, 644945, 2856185, 3998659, 19993295]

約数ペア:

[(1, 19993295), (5, 3998659), (7, 2856185), (31, 644945), (35, 571237), (155, 128989), (217, 92135), (1085, 18427)]