20011541

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{181}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 24155040

約数和(自身を除く): 4143499

約数列:

[1, 11, 19, 23, 181, 209, 253, 437, 529, 1991, 3439, 4163, 4807, 5819, 10051, 37829, 45793, 79097, 95749, 110561, 870067, 1053239, 1819231, 20011541]

約数ペア:

[(1, 20011541), (11, 1819231), (19, 1053239), (23, 870067), (181, 110561), (209, 95749), (253, 79097), (437, 45793), (529, 37829), (1991, 10051), (3439, 5819), (4163, 4807)]