18697965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 18073875

約数列:

[1, 3, 5, 11, 13, 15, 23, 33, 39, 55, 65, 69, 115, 143, 165, 195, 253, 299, 345, 379, 429, 715, 759, 897, 1137, 1265, 1495, 1895, 2145, 3289, 3795, 4169, 4485, 4927, 5685, 8717, 9867, 12507, 14781, 16445, 20845, 24635, 26151, 43585, 49335, 54197, 62535, 73905, 95887, 113321, 130755, 162591, 270985, 287661, 339963, 479435, 566605, 812955, 1246531, 1438305, 1699815, 3739593, 6232655, 18697965]

約数ペア:

[(1, 18697965), (3, 6232655), (5, 3739593), (11, 1699815), (13, 1438305), (15, 1246531), (23, 812955), (33, 566605), (39, 479435), (55, 339963), (65, 287661), (69, 270985), (115, 162591), (143, 130755), (165, 113321), (195, 95887), (253, 73905), (299, 62535), (345, 54197), (379, 49335), (429, 43585), (715, 26151), (759, 24635), (897, 20845), (1137, 16445), (1265, 14781), (1495, 12507), (1895, 9867), (2145, 8717), (3289, 5685), (3795, 4927), (4169, 4485)]