18890366978

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3923}}^1\times {\mathrm{8389}}^1$

素因数の和:12362

約数の個数: 32

約数和(自身を含む): 33185738880

約数和(自身を除く): 14295371902

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 3923, 7846, 8389, 16778, 27461, 54922, 58723, 117446, 160843, 321686, 343949, 687898, 1125901, 2251802, 2407643, 4815286, 32910047, 65820094, 230370329, 460740658, 1349311927, 2698623854, 9445183489, 18890366978]

約数ペア:

[(1, 18890366978), (2, 9445183489), (7, 2698623854), (14, 1349311927), (41, 460740658), (82, 230370329), (287, 65820094), (574, 32910047), (3923, 4815286), (7846, 2407643), (8389, 2251802), (16778, 1125901), (27461, 687898), (54922, 343949), (58723, 321686), (117446, 160843)]