15747939

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 40

約数和(自身を含む): 25090560

約数和(自身を除く): 9342621

約数列:

[1, 3, 9, 23, 27, 69, 79, 81, 107, 207, 237, 321, 621, 711, 963, 1817, 1863, 2133, 2461, 2889, 5451, 6399, 7383, 8453, 8667, 16353, 22149, 25359, 49059, 66447, 76077, 147177, 194419, 199341, 228231, 583257, 684693, 1749771, 5249313, 15747939]

約数ペア:

[(1, 15747939), (3, 5249313), (9, 1749771), (23, 684693), (27, 583257), (69, 228231), (79, 199341), (81, 194419), (107, 147177), (207, 76077), (237, 66447), (321, 49059), (621, 25359), (711, 22149), (963, 16353), (1817, 8667), (1863, 8453), (2133, 7383), (2461, 6399), (2889, 5451)]