18993765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4889}}^1$

素因数の和:4941

約数の個数: 32

約数和(自身を含む): 35677440

約数和(自身を除く): 16683675

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 4889, 14667, 24445, 34223, 73335, 102669, 171115, 180893, 513345, 542679, 904465, 1266251, 2713395, 3798753, 6331255, 18993765]

約数ペア:

[(1, 18993765), (3, 6331255), (5, 3798753), (7, 2713395), (15, 1266251), (21, 904465), (35, 542679), (37, 513345), (105, 180893), (111, 171115), (185, 102669), (259, 73335), (555, 34223), (777, 24445), (1295, 14667), (3885, 4889)]