18118685

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:917

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 8008675

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 863, 1105, 1235, 1615, 4199, 4315, 11219, 14671, 16397, 20995, 56095, 73355, 81985, 190723, 213161, 278749, 953615, 1065805, 1393745, 3623737, 18118685]

約数ペア:

[(1, 18118685), (5, 3623737), (13, 1393745), (17, 1065805), (19, 953615), (65, 278749), (85, 213161), (95, 190723), (221, 81985), (247, 73355), (323, 56095), (863, 20995), (1105, 16397), (1235, 14671), (1615, 11219), (4199, 4315)]