18973085

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1123}}^1$

素因数の和:1268

約数の個数: 16

約数和(自身を含む): 23738880

約数和(自身を除く): 4765795

約数列:

[1, 5, 31, 109, 155, 545, 1123, 3379, 5615, 16895, 34813, 122407, 174065, 612035, 3794617, 18973085]

約数ペア:

[(1, 18973085), (5, 3794617), (31, 612035), (109, 174065), (155, 122407), (545, 34813), (1123, 16895), (3379, 5615)]