20161749069

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{262103}}^1$

素因数の和:262167

約数の個数: 64

約数和(自身を含む): 38246215680

約数和(自身を除く): 18084466611

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 37, 63, 77, 99, 111, 189, 231, 259, 297, 333, 407, 693, 777, 999, 1221, 2079, 2331, 2849, 3663, 6993, 8547, 10989, 25641, 76923, 262103, 786309, 1834721, 2358927, 2883133, 5504163, 7076781, 8649399, 9697811, 16512489, 20181931, 25948197, 29093433, 49537467, 60545793, 67884677, 77844591, 87280299, 106675921, 181637379, 203654031, 261840897, 320027763, 544912137, 610962093, 746731447, 960083289, 1832886279, 2240194341, 2880249867, 6720583023, 20161749069]

約数ペア:

[(1, 20161749069), (3, 6720583023), (7, 2880249867), (9, 2240194341), (11, 1832886279), (21, 960083289), (27, 746731447), (33, 610962093), (37, 544912137), (63, 320027763), (77, 261840897), (99, 203654031), (111, 181637379), (189, 106675921), (231, 87280299), (259, 77844591), (297, 67884677), (333, 60545793), (407, 49537467), (693, 29093433), (777, 25948197), (999, 20181931), (1221, 16512489), (2079, 9697811), (2331, 8649399), (2849, 7076781), (3663, 5504163), (6993, 2883133), (8547, 2358927), (10989, 1834721), (25641, 786309), (76923, 262103)]