20187954087

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{18919}}^1$

素因数の和:19021

約数の個数: 64

約数和(自身を含む): 33783552000

約数和(自身を除く): 13595597913

約数列:

[1, 3, 7, 17, 21, 49, 51, 61, 119, 147, 183, 343, 357, 427, 833, 1029, 1037, 1281, 2499, 2989, 3111, 5831, 7259, 8967, 17493, 18919, 20923, 21777, 50813, 56757, 62769, 132433, 152439, 321623, 355691, 397299, 927031, 964869, 1067073, 1154059, 2251361, 2781093, 3462177, 6489217, 6754083, 8078413, 15759527, 19467651, 19619003, 24235239, 47278581, 56548891, 58857009, 110316689, 137333021, 169646673, 330950067, 395842237, 411999063, 961331147, 1187526711, 2883993441, 6729318029, 20187954087]

約数ペア:

[(1, 20187954087), (3, 6729318029), (7, 2883993441), (17, 1187526711), (21, 961331147), (49, 411999063), (51, 395842237), (61, 330950067), (119, 169646673), (147, 137333021), (183, 110316689), (343, 58857009), (357, 56548891), (427, 47278581), (833, 24235239), (1029, 19619003), (1037, 19467651), (1281, 15759527), (2499, 8078413), (2989, 6754083), (3111, 6489217), (5831, 3462177), (7259, 2781093), (8967, 2251361), (17493, 1154059), (18919, 1067073), (20923, 964869), (21777, 927031), (50813, 397299), (56757, 355691), (62769, 321623), (132433, 152439)]