18712382

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{9859}}^1$

素因数の和:9947

約数の個数: 16

約数和(自身を含む): 30644880

約数和(自身を除く): 11932498

約数列:

[1, 2, 13, 26, 73, 146, 949, 1898, 9859, 19718, 128167, 256334, 719707, 1439414, 9356191, 18712382]

約数ペア:

[(1, 18712382), (2, 9356191), (13, 1439414), (26, 719707), (73, 256334), (146, 128167), (949, 19718), (1898, 9859)]