20667645

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12413}}^1$

素因数の和:12461

約数の個数: 24

約数和(自身を含む): 36795096

約数和(自身を除く): 16127451

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12413, 37239, 62065, 111717, 186195, 459281, 558585, 1377843, 2296405, 4133529, 6889215, 20667645]

約数ペア:

[(1, 20667645), (3, 6889215), (5, 4133529), (9, 2296405), (15, 1377843), (37, 558585), (45, 459281), (111, 186195), (185, 111717), (333, 62065), (555, 37239), (1665, 12413)]