18638178

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5557}}^1$

素因数の和:5618

約数の個数: 32

約数和(自身を含む): 41084736

約数和(自身を除く): 22446558

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 5557, 11114, 16671, 33342, 72241, 144482, 216723, 238951, 433446, 477902, 716853, 1433706, 3106363, 6212726, 9319089, 18638178]

約数ペア:

[(1, 18638178), (2, 9319089), (3, 6212726), (6, 3106363), (13, 1433706), (26, 716853), (39, 477902), (43, 433446), (78, 238951), (86, 216723), (129, 144482), (258, 72241), (559, 33342), (1118, 16671), (1677, 11114), (3354, 5557)]