21971956

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{5297}}^1$

素因数の和:5379

約数の個数: 24

約数和(自身を含む): 41387976

約数和(自身を除く): 19416020

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 5297, 10594, 21188, 90049, 180098, 323117, 360196, 646234, 1292468, 5492989, 10985978, 21971956]

約数ペア:

[(1, 21971956), (2, 10985978), (4, 5492989), (17, 1292468), (34, 646234), (61, 360196), (68, 323117), (122, 180098), (244, 90049), (1037, 21188), (2074, 10594), (4148, 5297)]