18994235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4003}}^1$

素因数の和:4094

約数の個数: 16

約数和(自身を含む): 24888864

約数和(自身を除く): 5894629

約数列:

[1, 5, 13, 65, 73, 365, 949, 4003, 4745, 20015, 52039, 260195, 292219, 1461095, 3798847, 18994235]

約数ペア:

[(1, 18994235), (5, 3798847), (13, 1461095), (65, 292219), (73, 260195), (365, 52039), (949, 20015), (4003, 4745)]