227712891

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2897}}^1$

素因数の和:3123

約数の個数: 32

約数和(自身を含む): 367234560

約数和(自身を除く): 139521669

約数列:

[1, 3, 7, 19, 21, 57, 133, 197, 399, 591, 1379, 2897, 3743, 4137, 8691, 11229, 20279, 26201, 55043, 60837, 78603, 165129, 385301, 570709, 1155903, 1712127, 3994963, 10843471, 11984889, 32530413, 75904297, 227712891]

約数ペア:

[(1, 227712891), (3, 75904297), (7, 32530413), (19, 11984889), (21, 10843471), (57, 3994963), (133, 1712127), (197, 1155903), (399, 570709), (591, 385301), (1379, 165129), (2897, 78603), (3743, 60837), (4137, 55043), (8691, 26201), (11229, 20279)]