18657828

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{1511}}^1$

素因数の和:1542

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 36378972

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 343, 441, 588, 686, 882, 1029, 1372, 1511, 1764, 2058, 3022, 3087, 4116, 4533, 6044, 6174, 9066, 10577, 12348, 13599, 18132, 21154, 27198, 31731, 42308, 54396, 63462, 74039, 95193, 126924, 148078, 190386, 222117, 296156, 380772, 444234, 518273, 666351, 888468, 1036546, 1332702, 1554819, 2073092, 2665404, 3109638, 4664457, 6219276, 9328914, 18657828]

約数ペア:

[(1, 18657828), (2, 9328914), (3, 6219276), (4, 4664457), (6, 3109638), (7, 2665404), (9, 2073092), (12, 1554819), (14, 1332702), (18, 1036546), (21, 888468), (28, 666351), (36, 518273), (42, 444234), (49, 380772), (63, 296156), (84, 222117), (98, 190386), (126, 148078), (147, 126924), (196, 95193), (252, 74039), (294, 63462), (343, 54396), (441, 42308), (588, 31731), (686, 27198), (882, 21154), (1029, 18132), (1372, 13599), (1511, 12348), (1764, 10577), (2058, 9066), (3022, 6174), (3087, 6044), (4116, 4533)]