19001815

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 27377280

約数和(自身を除く): 8375465

約数列:

[1, 5, 7, 29, 35, 97, 145, 193, 203, 485, 679, 965, 1015, 1351, 2813, 3395, 5597, 6755, 14065, 18721, 19691, 27985, 39179, 93605, 98455, 131047, 195895, 542909, 655235, 2714545, 3800363, 19001815]

約数ペア:

[(1, 19001815), (5, 3800363), (7, 2714545), (29, 655235), (35, 542909), (97, 195895), (145, 131047), (193, 98455), (203, 93605), (485, 39179), (679, 27985), (965, 19691), (1015, 18721), (1351, 14065), (2813, 6755), (3395, 5597)]