21795256

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2971}}^1$

素因数の和:3115

約数の個数: 32

約数和(自身を含む): 47076480

約数和(自身を除く): 25281224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 2971, 3668, 5942, 7336, 11884, 20797, 23768, 41594, 83188, 166376, 389201, 778402, 1556804, 2724407, 3113608, 5448814, 10897628, 21795256]

約数ペア:

[(1, 21795256), (2, 10897628), (4, 5448814), (7, 3113608), (8, 2724407), (14, 1556804), (28, 778402), (56, 389201), (131, 166376), (262, 83188), (524, 41594), (917, 23768), (1048, 20797), (1834, 11884), (2971, 7336), (3668, 5942)]