28782117

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 51787008

約数和(自身を除く): 23004891

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 113, 117, 273, 311, 339, 791, 819, 933, 1017, 1469, 2177, 2373, 2799, 4043, 4407, 6531, 7119, 10283, 12129, 13221, 19593, 28301, 30849, 35143, 36387, 84903, 92547, 105429, 246001, 254709, 316287, 456859, 738003, 1370577, 2214009, 3198013, 4111731, 9594039, 28782117]

約数ペア:

[(1, 28782117), (3, 9594039), (7, 4111731), (9, 3198013), (13, 2214009), (21, 1370577), (39, 738003), (63, 456859), (91, 316287), (113, 254709), (117, 246001), (273, 105429), (311, 92547), (339, 84903), (791, 36387), (819, 35143), (933, 30849), (1017, 28301), (1469, 19593), (2177, 13221), (2373, 12129), (2799, 10283), (4043, 7119), (4407, 6531)]