18816369

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1907}}^1$

素因数の和:1957

約数の個数: 32

約数和(自身を含む): 30772224

約数和(自身を除く): 11955855

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 143, 253, 299, 429, 759, 897, 1907, 3289, 5721, 9867, 20977, 24791, 43861, 62931, 74373, 131583, 272701, 482471, 570193, 818103, 1447413, 1710579, 6272123, 18816369]

約数ペア:

[(1, 18816369), (3, 6272123), (11, 1710579), (13, 1447413), (23, 818103), (33, 570193), (39, 482471), (69, 272701), (143, 131583), (253, 74373), (299, 62931), (429, 43861), (759, 24791), (897, 20977), (1907, 9867), (3289, 5721)]