18015585

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 33970176

約数和(自身を除く): 15954591

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 127, 147, 193, 245, 381, 579, 635, 735, 889, 965, 1351, 1905, 2667, 2895, 4053, 4445, 6223, 6755, 9457, 13335, 18669, 20265, 24511, 28371, 31115, 47285, 73533, 93345, 122555, 141855, 171577, 367665, 514731, 857885, 1201039, 2573655, 3603117, 6005195, 18015585]

約数ペア:

[(1, 18015585), (3, 6005195), (5, 3603117), (7, 2573655), (15, 1201039), (21, 857885), (35, 514731), (49, 367665), (105, 171577), (127, 141855), (147, 122555), (193, 93345), (245, 73533), (381, 47285), (579, 31115), (635, 28371), (735, 24511), (889, 20265), (965, 18669), (1351, 13335), (1905, 9457), (2667, 6755), (2895, 6223), (4053, 4445)]