18969111

素因数分解:

$3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1427}}^1$

素因数の和:1651

約数の個数: 24

約数和(自身を含む): 31484544

約数和(自身を除く): 12515433

約数列:

[1, 3, 7, 9, 21, 63, 211, 633, 1427, 1477, 1899, 4281, 4431, 9989, 12843, 13293, 29967, 89901, 301097, 903291, 2107679, 2709873, 6323037, 18969111]

約数ペア:

[(1, 18969111), (3, 6323037), (7, 2709873), (9, 2107679), (21, 903291), (63, 301097), (211, 89901), (633, 29967), (1427, 13293), (1477, 12843), (1899, 9989), (4281, 4431)]