27787473

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 48562176

約数和(自身を除く): 20774703

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 127, 151, 161, 207, 381, 453, 483, 889, 1057, 1143, 1359, 1449, 2667, 2921, 3171, 3473, 8001, 8763, 9513, 10419, 19177, 20447, 24311, 26289, 31257, 57531, 61341, 72933, 134239, 172593, 184023, 218799, 402717, 441071, 1208151, 1323213, 3087497, 3969639, 9262491, 27787473]

約数ペア:

[(1, 27787473), (3, 9262491), (7, 3969639), (9, 3087497), (21, 1323213), (23, 1208151), (63, 441071), (69, 402717), (127, 218799), (151, 184023), (161, 172593), (207, 134239), (381, 72933), (453, 61341), (483, 57531), (889, 31257), (1057, 26289), (1143, 24311), (1359, 20447), (1449, 19177), (2667, 10419), (2921, 9513), (3171, 8763), (3473, 8001)]