39691821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 60939648

約数和(自身を除く): 21247827

約数列:

[1, 3, 13, 17, 39, 51, 131, 221, 393, 457, 663, 1371, 1703, 2227, 5109, 5941, 6681, 7769, 17823, 23307, 28951, 59867, 86853, 100997, 179601, 302991, 778271, 1017739, 2334813, 3053217, 13230607, 39691821]

約数ペア:

[(1, 39691821), (3, 13230607), (13, 3053217), (17, 2334813), (39, 1017739), (51, 778271), (131, 302991), (221, 179601), (393, 100997), (457, 86853), (663, 59867), (1371, 28951), (1703, 23307), (2227, 17823), (5109, 7769), (5941, 6681)]