18540585

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 37290240

約数和(自身を除く): 18749655

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 829, 1065, 1491, 2485, 2487, 3195, 4145, 4473, 5803, 7455, 7461, 12435, 17409, 22365, 29015, 37305, 52227, 58859, 87045, 176577, 261135, 294295, 412013, 529731, 882885, 1236039, 2060065, 2648655, 3708117, 6180195, 18540585]

約数ペア:

[(1, 18540585), (3, 6180195), (5, 3708117), (7, 2648655), (9, 2060065), (15, 1236039), (21, 882885), (35, 529731), (45, 412013), (63, 294295), (71, 261135), (105, 176577), (213, 87045), (315, 58859), (355, 52227), (497, 37305), (639, 29015), (829, 22365), (1065, 17409), (1491, 12435), (2485, 7461), (2487, 7455), (3195, 5803), (4145, 4473)]