18742036545

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{206081}}^1$

素因数の和:206182

約数の個数: 48

約数和(自身を含む): 33949124352

約数和(自身を除く): 15207087807

約数列:

[1, 3, 5, 9, 15, 43, 45, 47, 129, 141, 215, 235, 387, 423, 645, 705, 1935, 2021, 2115, 6063, 10105, 18189, 30315, 90945, 206081, 618243, 1030405, 1854729, 3091215, 8861483, 9273645, 9685807, 26584449, 29057421, 44307415, 48429035, 79753347, 87172263, 132922245, 145287105, 398766735, 416489701, 435861315, 1249469103, 2082448505, 3748407309, 6247345515, 18742036545]

約数ペア:

[(1, 18742036545), (3, 6247345515), (5, 3748407309), (9, 2082448505), (15, 1249469103), (43, 435861315), (45, 416489701), (47, 398766735), (129, 145287105), (141, 132922245), (215, 87172263), (235, 79753347), (387, 48429035), (423, 44307415), (645, 29057421), (705, 26584449), (1935, 9685807), (2021, 9273645), (2115, 8861483), (6063, 3091215), (10105, 1854729), (18189, 1030405), (30315, 618243), (90945, 206081)]