131137923

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{313}}^1$

素因数の和:675

約数の個数: 32

約数和(自身を含む): 204014592

約数和(自身を除く): 72876669

約数列:

[1, 3, 7, 21, 71, 213, 281, 313, 497, 843, 939, 1491, 1967, 2191, 5901, 6573, 19951, 22223, 59853, 66669, 87953, 139657, 155561, 263859, 418971, 466683, 615671, 1847013, 6244663, 18733989, 43712641, 131137923]

約数ペア:

[(1, 131137923), (3, 43712641), (7, 18733989), (21, 6244663), (71, 1847013), (213, 615671), (281, 466683), (313, 418971), (497, 263859), (843, 155561), (939, 139657), (1491, 87953), (1967, 66669), (2191, 59853), (5901, 22223), (6573, 19951)]