18818415

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5431}}^1$

素因数の和:5460

約数の個数: 48

約数和(自身を含む): 40674816

約数和(自身を除く): 21856401

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5431, 16293, 27155, 38017, 48879, 59741, 81465, 114051, 179223, 190085, 244395, 298705, 342153, 418187, 537669, 570255, 896115, 1254561, 1710765, 2090935, 2688345, 3763683, 6272805, 18818415]

約数ペア:

[(1, 18818415), (3, 6272805), (5, 3763683), (7, 2688345), (9, 2090935), (11, 1710765), (15, 1254561), (21, 896115), (33, 570255), (35, 537669), (45, 418187), (55, 342153), (63, 298705), (77, 244395), (99, 190085), (105, 179223), (165, 114051), (231, 81465), (315, 59741), (385, 48879), (495, 38017), (693, 27155), (1155, 16293), (3465, 5431)]