2021022355825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9857}}^1\times {\mathrm{39241}}^1$

素因数の和:49138

約数の個数: 48

約数和(自身を含む): 2878146411840

約数和(自身を除く): 857124056015

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 5225, 9857, 39241, 49285, 108427, 187283, 196205, 246425, 431651, 542135, 745579, 936415, 981025, 2060113, 2158255, 2710675, 3727895, 4682075, 8201369, 10300565, 10791275, 18639475, 41006845, 51502825, 205034225, 386798537, 1933992685, 4254783907, 7349172203, 9669963425, 21273919535, 36745861015, 80840894233, 106369597675, 183729305075, 404204471165, 2021022355825]

約数ペア:

[(1, 2021022355825), (5, 404204471165), (11, 183729305075), (19, 106369597675), (25, 80840894233), (55, 36745861015), (95, 21273919535), (209, 9669963425), (275, 7349172203), (475, 4254783907), (1045, 1933992685), (5225, 386798537), (9857, 205034225), (39241, 51502825), (49285, 41006845), (108427, 18639475), (187283, 10791275), (196205, 10300565), (246425, 8201369), (431651, 4682075), (542135, 3727895), (745579, 2710675), (936415, 2158255), (981025, 2060113)]