18126855

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 35020800

約数和(自身を除く): 16893945

約数列:

[1, 3, 5, 9, 15, 19, 27, 37, 45, 57, 95, 111, 135, 171, 185, 191, 285, 333, 513, 555, 573, 703, 855, 955, 999, 1665, 1719, 2109, 2565, 2865, 3515, 3629, 4995, 5157, 6327, 7067, 8595, 10545, 10887, 18145, 18981, 21201, 25785, 31635, 32661, 35335, 54435, 63603, 94905, 97983, 106005, 134273, 163305, 190809, 318015, 402819, 489915, 671365, 954045, 1208457, 2014095, 3625371, 6042285, 18126855]

約数ペア:

[(1, 18126855), (3, 6042285), (5, 3625371), (9, 2014095), (15, 1208457), (19, 954045), (27, 671365), (37, 489915), (45, 402819), (57, 318015), (95, 190809), (111, 163305), (135, 134273), (171, 106005), (185, 97983), (191, 94905), (285, 63603), (333, 54435), (513, 35335), (555, 32661), (573, 31635), (703, 25785), (855, 21201), (955, 18981), (999, 18145), (1665, 10887), (1719, 10545), (2109, 8595), (2565, 7067), (2865, 6327), (3515, 5157), (3629, 4995)]