18101889

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 13347711

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 221, 247, 323, 479, 663, 741, 969, 1437, 1989, 2223, 2907, 4199, 4311, 6227, 8143, 9101, 12597, 18681, 24429, 27303, 37791, 56043, 73287, 81909, 105859, 118313, 154717, 317577, 354939, 464151, 952731, 1064817, 1392453, 2011321, 6033963, 18101889]

約数ペア:

[(1, 18101889), (3, 6033963), (9, 2011321), (13, 1392453), (17, 1064817), (19, 952731), (39, 464151), (51, 354939), (57, 317577), (117, 154717), (153, 118313), (171, 105859), (221, 81909), (247, 73287), (323, 56043), (479, 37791), (663, 27303), (741, 24429), (969, 18681), (1437, 12597), (1989, 9101), (2223, 8143), (2907, 6227), (4199, 4311)]