18719079

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{3821}}^1$

素因数の和:3918

約数の個数: 16

約数和(自身を含む): 26417664

約数和(自身を除く): 7698585

約数列:

[1, 3, 23, 69, 71, 213, 1633, 3821, 4899, 11463, 87883, 263649, 271291, 813873, 6239693, 18719079]

約数ペア:

[(1, 18719079), (3, 6239693), (23, 813873), (69, 271291), (71, 263649), (213, 87883), (1633, 11463), (3821, 4899)]