18132387

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3907}}^1$

素因数の和:3947

約数の個数: 32

約数和(自身を含む): 31514112

約数和(自身を除く): 13381725

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 3907, 4641, 11721, 27349, 50791, 66419, 82047, 152373, 199257, 355537, 464933, 863447, 1066611, 1394799, 2590341, 6044129, 18132387]

約数ペア:

[(1, 18132387), (3, 6044129), (7, 2590341), (13, 1394799), (17, 1066611), (21, 863447), (39, 464933), (51, 355537), (91, 199257), (119, 152373), (221, 82047), (273, 66419), (357, 50791), (663, 27349), (1547, 11721), (3907, 4641)]