28781838

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{7507}}^1$

素因数の和:7589

約数の個数: 32

約数和(自身を含む): 64869120

約数和(自身を除く): 36087282

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 426, 639, 1278, 1917, 3834, 7507, 15014, 22521, 45042, 67563, 135126, 202689, 405378, 532997, 1065994, 1598991, 3197982, 4796973, 9593946, 14390919, 28781838]

約数ペア:

[(1, 28781838), (2, 14390919), (3, 9593946), (6, 4796973), (9, 3197982), (18, 1598991), (27, 1065994), (54, 532997), (71, 405378), (142, 202689), (213, 135126), (426, 67563), (639, 45042), (1278, 22521), (1917, 15014), (3834, 7507)]