21804856

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{859}}^1$

素因数の和:1051

約数の個数: 32

約数和(自身を含む): 43344000

約数和(自身を除く): 21539144

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 167, 334, 668, 859, 1336, 1718, 3173, 3436, 6346, 6872, 12692, 16321, 25384, 32642, 65284, 130568, 143453, 286906, 573812, 1147624, 2725607, 5451214, 10902428, 21804856]

約数ペア:

[(1, 21804856), (2, 10902428), (4, 5451214), (8, 2725607), (19, 1147624), (38, 573812), (76, 286906), (152, 143453), (167, 130568), (334, 65284), (668, 32642), (859, 25384), (1336, 16321), (1718, 12692), (3173, 6872), (3436, 6346)]