18890378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5227}}^1$

素因数の和:5381

約数の個数: 16

約数和(自身を含む): 30740640

約数和(自身を除く): 11850262

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 5227, 10454, 67951, 135902, 726553, 1453106, 9445189, 18890378]

約数ペア:

[(1, 18890378), (2, 9445189), (13, 1453106), (26, 726553), (139, 135902), (278, 67951), (1807, 10454), (3614, 5227)]