20443059

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 36836800

約数和(自身を除く): 16393741

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 109, 117, 229, 273, 327, 687, 763, 819, 981, 1417, 1603, 2061, 2289, 2977, 4251, 4809, 6867, 8931, 9919, 12753, 14427, 20839, 24961, 26793, 29757, 62517, 74883, 89271, 174727, 187551, 224649, 324493, 524181, 973479, 1572543, 2271451, 2920437, 6814353, 20443059]

約数ペア:

[(1, 20443059), (3, 6814353), (7, 2920437), (9, 2271451), (13, 1572543), (21, 973479), (39, 524181), (63, 324493), (91, 224649), (109, 187551), (117, 174727), (229, 89271), (273, 74883), (327, 62517), (687, 29757), (763, 26793), (819, 24961), (981, 20839), (1417, 14427), (1603, 12753), (2061, 9919), (2289, 8931), (2977, 6867), (4251, 4809)]