18398289

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3547}}^1$

素因数の和:3589

約数の個数: 32

約数和(自身を含む): 31790080

約数和(自身を除く): 13391791

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 3547, 5187, 10641, 24829, 46111, 67393, 74487, 138333, 202179, 322777, 471751, 876109, 968331, 1415253, 2628327, 6132763, 18398289]

約数ペア:

[(1, 18398289), (3, 6132763), (7, 2628327), (13, 1415253), (19, 968331), (21, 876109), (39, 471751), (57, 322777), (91, 202179), (133, 138333), (247, 74487), (273, 67393), (399, 46111), (741, 24829), (1729, 10641), (3547, 5187)]