19742072

素因数分解:

$2^3\times 7^1\times {\mathrm{167}}^1\times {\mathrm{2111}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 22835848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 167, 334, 668, 1169, 1336, 2111, 2338, 4222, 4676, 8444, 9352, 14777, 16888, 29554, 59108, 118216, 352537, 705074, 1410148, 2467759, 2820296, 4935518, 9871036, 19742072]

約数ペア:

[(1, 19742072), (2, 9871036), (4, 4935518), (7, 2820296), (8, 2467759), (14, 1410148), (28, 705074), (56, 352537), (167, 118216), (334, 59108), (668, 29554), (1169, 16888), (1336, 14777), (2111, 9352), (2338, 8444), (4222, 4676)]