18907252

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 41144320

約数和(自身を除く): 22237068

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 127, 182, 254, 364, 409, 508, 818, 889, 1636, 1651, 1778, 2863, 3302, 3556, 5317, 5726, 6604, 10634, 11452, 11557, 21268, 23114, 37219, 46228, 51943, 74438, 103886, 148876, 207772, 363601, 675259, 727202, 1350518, 1454404, 2701036, 4726813, 9453626, 18907252]

約数ペア:

[(1, 18907252), (2, 9453626), (4, 4726813), (7, 2701036), (13, 1454404), (14, 1350518), (26, 727202), (28, 675259), (52, 363601), (91, 207772), (127, 148876), (182, 103886), (254, 74438), (364, 51943), (409, 46228), (508, 37219), (818, 23114), (889, 21268), (1636, 11557), (1651, 11452), (1778, 10634), (2863, 6604), (3302, 5726), (3556, 5317)]