19891366

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2069}}^1$

素因数の和:2124

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 15878234

約数列:

[1, 2, 11, 19, 22, 23, 38, 46, 209, 253, 418, 437, 506, 874, 2069, 4138, 4807, 9614, 22759, 39311, 45518, 47587, 78622, 95174, 432421, 523457, 864842, 904153, 1046914, 1808306, 9945683, 19891366]

約数ペア:

[(1, 19891366), (2, 9945683), (11, 1808306), (19, 1046914), (22, 904153), (23, 864842), (38, 523457), (46, 432421), (209, 95174), (253, 78622), (418, 47587), (437, 45518), (506, 39311), (874, 22759), (2069, 9614), (4138, 4807)]