21458475

素因数分解:

$3^2\times 5^2\times {\mathrm{283}}^1\times {\mathrm{337}}^1$

素因数の和:636

約数の個数: 36

約数和(自身を含む): 38684776

約数和(自身を除く): 17226301

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 283, 337, 849, 1011, 1415, 1685, 2547, 3033, 4245, 5055, 7075, 8425, 12735, 15165, 21225, 25275, 63675, 75825, 95371, 286113, 476855, 858339, 1430565, 2384275, 4291695, 7152825, 21458475]

約数ペア:

[(1, 21458475), (3, 7152825), (5, 4291695), (9, 2384275), (15, 1430565), (25, 858339), (45, 476855), (75, 286113), (225, 95371), (283, 75825), (337, 63675), (849, 25275), (1011, 21225), (1415, 15165), (1685, 12735), (2547, 8425), (3033, 7075), (4245, 5055)]