18287685

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{727}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 34978944

約数和(自身を除く): 16691259

約数列:

[1, 3, 5, 9, 13, 15, 39, 43, 45, 65, 117, 129, 195, 215, 387, 559, 585, 645, 727, 1677, 1935, 2181, 2795, 3635, 5031, 6543, 8385, 9451, 10905, 25155, 28353, 31261, 32715, 47255, 85059, 93783, 141765, 156305, 281349, 406393, 425295, 468915, 1219179, 1406745, 2031965, 3657537, 6095895, 18287685]

約数ペア:

[(1, 18287685), (3, 6095895), (5, 3657537), (9, 2031965), (13, 1406745), (15, 1219179), (39, 468915), (43, 425295), (45, 406393), (65, 281349), (117, 156305), (129, 141765), (195, 93783), (215, 85059), (387, 47255), (559, 32715), (585, 31261), (645, 28353), (727, 25155), (1677, 10905), (1935, 9451), (2181, 8385), (2795, 6543), (3635, 5031)]