21483945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{283}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 42886272

約数和(自身を除く): 21402327

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 241, 283, 315, 723, 849, 1205, 1415, 1687, 1981, 2169, 2547, 3615, 4245, 5061, 5943, 8435, 9905, 10845, 12735, 15183, 17829, 25305, 29715, 68203, 75915, 89145, 204609, 341015, 477421, 613827, 1023045, 1432263, 2387105, 3069135, 4296789, 7161315, 21483945]

約数ペア:

[(1, 21483945), (3, 7161315), (5, 4296789), (7, 3069135), (9, 2387105), (15, 1432263), (21, 1023045), (35, 613827), (45, 477421), (63, 341015), (105, 204609), (241, 89145), (283, 75915), (315, 68203), (723, 29715), (849, 25305), (1205, 17829), (1415, 15183), (1687, 12735), (1981, 10845), (2169, 9905), (2547, 8435), (3615, 5943), (4245, 5061)]