21801465

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1033}}^1$

素因数の和:1118

約数の個数: 48

約数和(自身を含む): 43874688

約数和(自身を除く): 22073223

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 67, 105, 201, 315, 335, 469, 603, 1005, 1033, 1407, 2345, 3015, 3099, 4221, 5165, 7035, 7231, 9297, 15495, 21105, 21693, 36155, 46485, 65079, 69211, 108465, 207633, 325395, 346055, 484477, 622899, 1038165, 1453431, 2422385, 3114495, 4360293, 7267155, 21801465]

約数ペア:

[(1, 21801465), (3, 7267155), (5, 4360293), (7, 3114495), (9, 2422385), (15, 1453431), (21, 1038165), (35, 622899), (45, 484477), (63, 346055), (67, 325395), (105, 207633), (201, 108465), (315, 69211), (335, 65079), (469, 46485), (603, 36155), (1005, 21693), (1033, 21105), (1407, 15495), (2345, 9297), (3015, 7231), (3099, 7035), (4221, 5165)]