21979772

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{601}}^1$

素因数の和:869

約数の個数: 24

約数和(自身を含む): 39645312

約数和(自身を除く): 17665540

約数列:

[1, 2, 4, 41, 82, 164, 223, 446, 601, 892, 1202, 2404, 9143, 18286, 24641, 36572, 49282, 98564, 134023, 268046, 536092, 5494943, 10989886, 21979772]

約数ペア:

[(1, 21979772), (2, 10989886), (4, 5494943), (41, 536092), (82, 268046), (164, 134023), (223, 98564), (446, 49282), (601, 36572), (892, 24641), (1202, 18286), (2404, 9143)]