18874274

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:745

約数の個数: 16

約数和(自身を含む): 28788480

約数和(自身を除く): 9914206

約数列:

[1, 2, 101, 202, 223, 419, 446, 838, 22523, 42319, 45046, 84638, 93437, 186874, 9437137, 18874274]

約数ペア:

[(1, 18874274), (2, 9437137), (101, 186874), (202, 93437), (223, 84638), (419, 45046), (446, 42319), (838, 22523)]