18986416

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{83}}^1$

素因数の和:166

約数の個数: 60

約数和(自身を含む): 40825512

約数和(自身を除く): 21839096

約数列:

[1, 2, 4, 8, 16, 17, 29, 34, 58, 68, 83, 116, 136, 166, 232, 272, 332, 464, 493, 664, 841, 986, 1328, 1411, 1682, 1972, 2407, 2822, 3364, 3944, 4814, 5644, 6728, 7888, 9628, 11288, 13456, 14297, 19256, 22576, 28594, 38512, 40919, 57188, 69803, 81838, 114376, 139606, 163676, 228752, 279212, 327352, 558424, 654704, 1116848, 1186651, 2373302, 4746604, 9493208, 18986416]

約数ペア:

[(1, 18986416), (2, 9493208), (4, 4746604), (8, 2373302), (16, 1186651), (17, 1116848), (29, 654704), (34, 558424), (58, 327352), (68, 279212), (83, 228752), (116, 163676), (136, 139606), (166, 114376), (232, 81838), (272, 69803), (332, 57188), (464, 40919), (493, 38512), (664, 28594), (841, 22576), (986, 19256), (1328, 14297), (1411, 13456), (1682, 11288), (1972, 9628), (2407, 7888), (2822, 6728), (3364, 5644), (3944, 4814)]