18013178

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:510

約数の個数: 24

約数和(自身を含む): 29055060

約数和(自身を除く): 11041882

約数列:

[1, 2, 19, 38, 61, 122, 361, 409, 722, 818, 1159, 2318, 7771, 15542, 22021, 24949, 44042, 49898, 147649, 295298, 474031, 948062, 9006589, 18013178]

約数ペア:

[(1, 18013178), (2, 9006589), (19, 948062), (38, 474031), (61, 295298), (122, 147649), (361, 49898), (409, 44042), (722, 24949), (818, 22021), (1159, 15542), (2318, 7771)]