18912738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{839}}^1$

素因数の和:891

約数の個数: 48

約数和(自身を含む): 43323840

約数和(自身を除く): 24411102

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 221, 289, 442, 578, 663, 839, 867, 1326, 1678, 1734, 2517, 3757, 5034, 7514, 10907, 11271, 14263, 21814, 22542, 28526, 32721, 42789, 65442, 85578, 185419, 242471, 370838, 484942, 556257, 727413, 1112514, 1454826, 3152123, 6304246, 9456369, 18912738]

約数ペア:

[(1, 18912738), (2, 9456369), (3, 6304246), (6, 3152123), (13, 1454826), (17, 1112514), (26, 727413), (34, 556257), (39, 484942), (51, 370838), (78, 242471), (102, 185419), (221, 85578), (289, 65442), (442, 42789), (578, 32721), (663, 28526), (839, 22542), (867, 21814), (1326, 14263), (1678, 11271), (1734, 10907), (2517, 7514), (3757, 5034)]