12783561

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 21888000

約数和(自身を除く): 9104439

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 133, 147, 161, 199, 399, 437, 483, 597, 931, 1127, 1311, 1393, 2793, 3059, 3381, 3781, 4179, 4577, 9177, 9751, 11343, 13731, 21413, 26467, 29253, 32039, 64239, 79401, 86963, 96117, 185269, 224273, 260889, 555807, 608741, 672819, 1826223, 4261187, 12783561]

約数ペア:

[(1, 12783561), (3, 4261187), (7, 1826223), (19, 672819), (21, 608741), (23, 555807), (49, 260889), (57, 224273), (69, 185269), (133, 96117), (147, 86963), (161, 79401), (199, 64239), (399, 32039), (437, 29253), (483, 26467), (597, 21413), (931, 13731), (1127, 11343), (1311, 9751), (1393, 9177), (2793, 4577), (3059, 4179), (3381, 3781)]