18685359

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 34295040

約数和(自身を除く): 15609681

約数列:

[1, 3, 7, 9, 11, 21, 33, 59, 63, 77, 99, 177, 231, 413, 457, 531, 649, 693, 1239, 1371, 1947, 3199, 3717, 4113, 4543, 5027, 5841, 9597, 13629, 15081, 26963, 28791, 35189, 40887, 45243, 80889, 105567, 188741, 242667, 296593, 316701, 566223, 889779, 1698669, 2076151, 2669337, 6228453, 18685359]

約数ペア:

[(1, 18685359), (3, 6228453), (7, 2669337), (9, 2076151), (11, 1698669), (21, 889779), (33, 566223), (59, 316701), (63, 296593), (77, 242667), (99, 188741), (177, 105567), (231, 80889), (413, 45243), (457, 40887), (531, 35189), (649, 28791), (693, 26963), (1239, 15081), (1371, 13629), (1947, 9597), (3199, 5841), (3717, 5027), (4113, 4543)]