21271228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{21019}}^1$

素因数の和:21057

約数の個数: 24

約数和(自身を含む): 42376320

約数和(自身を除く): 21105092

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 21019, 42038, 84076, 231209, 462418, 483437, 924836, 966874, 1933748, 5317807, 10635614, 21271228]

約数ペア:

[(1, 21271228), (2, 10635614), (4, 5317807), (11, 1933748), (22, 966874), (23, 924836), (44, 483437), (46, 462418), (92, 231209), (253, 84076), (506, 42038), (1012, 21019)]