21257464

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1553}}^1$

素因数の和:1647

約数の個数: 32

約数和(自身を含む): 41958000

約数和(自身を除く): 20700536

約数列:

[1, 2, 4, 8, 29, 58, 59, 116, 118, 232, 236, 472, 1553, 1711, 3106, 3422, 6212, 6844, 12424, 13688, 45037, 90074, 91627, 180148, 183254, 360296, 366508, 733016, 2657183, 5314366, 10628732, 21257464]

約数ペア:

[(1, 21257464), (2, 10628732), (4, 5314366), (8, 2657183), (29, 733016), (58, 366508), (59, 360296), (116, 183254), (118, 180148), (232, 91627), (236, 90074), (472, 45037), (1553, 13688), (1711, 12424), (3106, 6844), (3422, 6212)]