197975999

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 234710784

約数和(自身を除く): 36734785

約数列:

[1, 13, 17, 43, 83, 221, 251, 559, 731, 1079, 1411, 3263, 3569, 4267, 9503, 10793, 18343, 20833, 46397, 55471, 60673, 140309, 183481, 270829, 354161, 788749, 895819, 2385253, 4604093, 11645647, 15228923, 197975999]

約数ペア:

[(1, 197975999), (13, 15228923), (17, 11645647), (43, 4604093), (83, 2385253), (221, 895819), (251, 788749), (559, 354161), (731, 270829), (1079, 183481), (1411, 140309), (3263, 60673), (3569, 55471), (4267, 46397), (9503, 20833), (10793, 18343)]