18258513

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1423}}^1$

素因数の和:1493

約数の個数: 32

約数和(自身を含む): 30621696

約数和(自身を除く): 12363183

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1423, 1833, 4269, 4277, 9961, 12831, 18499, 29883, 55497, 66881, 129493, 200643, 388479, 468167, 869453, 1404501, 2608359, 6086171, 18258513]

約数ペア:

[(1, 18258513), (3, 6086171), (7, 2608359), (13, 1404501), (21, 869453), (39, 468167), (47, 388479), (91, 200643), (141, 129493), (273, 66881), (329, 55497), (611, 29883), (987, 18499), (1423, 12831), (1833, 9961), (4269, 4277)]