31381077

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1619}}^1$

素因数の和:1713

約数の個数: 32

約数和(自身を含む): 52254720

約数和(自身を除く): 20873643

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1491, 1619, 2769, 4857, 6461, 11333, 19383, 21047, 33999, 63141, 114949, 147329, 344847, 441987, 804643, 1494337, 2413929, 4483011, 10460359, 31381077]

約数ペア:

[(1, 31381077), (3, 10460359), (7, 4483011), (13, 2413929), (21, 1494337), (39, 804643), (71, 441987), (91, 344847), (213, 147329), (273, 114949), (497, 63141), (923, 33999), (1491, 21047), (1619, 19383), (2769, 11333), (4857, 6461)]