18906670

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{43969}}^1$

素因数の和:44019

約数の個数: 16

約数和(自身を含む): 34824240

約数和(自身を除く): 15917570

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 43969, 87938, 219845, 439690, 1890667, 3781334, 9453335, 18906670]

約数ペア:

[(1, 18906670), (2, 9453335), (5, 3781334), (10, 1890667), (43, 439690), (86, 219845), (215, 87938), (430, 43969)]