18904210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{145417}}^1$

素因数の和:145437

約数の個数: 16

約数和(自身を含む): 36645336

約数和(自身を除く): 17741126

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 145417, 290834, 727085, 1454170, 1890421, 3780842, 9452105, 18904210]

約数ペア:

[(1, 18904210), (2, 9452105), (5, 3780842), (10, 1890421), (13, 1454170), (26, 727085), (65, 290834), (130, 145417)]