78812901

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:390

約数の個数: 36

約数和(自身を含む): 122332132

約数和(自身を除く): 43519231

約数列:

[1, 3, 9, 17, 51, 153, 157, 193, 289, 471, 579, 867, 1413, 1737, 2601, 2669, 3281, 8007, 9843, 24021, 29529, 30301, 45373, 55777, 90903, 136119, 167331, 272709, 408357, 501993, 515117, 1545351, 4636053, 8756989, 26270967, 78812901]

約数ペア:

[(1, 78812901), (3, 26270967), (9, 8756989), (17, 4636053), (51, 1545351), (153, 515117), (157, 501993), (193, 408357), (289, 272709), (471, 167331), (579, 136119), (867, 90903), (1413, 55777), (1737, 45373), (2601, 30301), (2669, 29529), (3281, 24021), (8007, 9843)]