19909072

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{7451}}^1$

素因数の和:7626

約数の個数: 20

約数和(自身を含む): 38810016

約数和(自身を除く): 18900944

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 1336, 2672, 7451, 14902, 29804, 59608, 119216, 1244317, 2488634, 4977268, 9954536, 19909072]

約数ペア:

[(1, 19909072), (2, 9954536), (4, 4977268), (8, 2488634), (16, 1244317), (167, 119216), (334, 59608), (668, 29804), (1336, 14902), (2672, 7451)]