18972807

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{15313}}^1$

素因数の和:15382

約数の個数: 16

約数和(自身を含む): 29402880

約数和(自身を除く): 10430073

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 15313, 45939, 107191, 321573, 903467, 2710401, 6324269, 18972807]

約数ペア:

[(1, 18972807), (3, 6324269), (7, 2710401), (21, 903467), (59, 321573), (177, 107191), (413, 45939), (1239, 15313)]