21395612

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33223}}^1$

素因数の和:33257

約数の個数: 24

約数和(自身を含む): 44653056

約数和(自身を除く): 23257444

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33223, 66446, 132892, 232561, 465122, 764129, 930244, 1528258, 3056516, 5348903, 10697806, 21395612]

約数ペア:

[(1, 21395612), (2, 10697806), (4, 5348903), (7, 3056516), (14, 1528258), (23, 930244), (28, 764129), (46, 465122), (92, 232561), (161, 132892), (322, 66446), (644, 33223)]