19151397

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:335

約数の個数: 40

約数和(自身を含む): 30666240

約数和(自身を除く): 11514843

約数列:

[1, 3, 9, 27, 29, 31, 81, 87, 93, 261, 263, 279, 783, 789, 837, 899, 2349, 2367, 2511, 2697, 7101, 7627, 8091, 8153, 21303, 22881, 24273, 24459, 68643, 72819, 73377, 205929, 220131, 236437, 617787, 660393, 709311, 2127933, 6383799, 19151397]

約数ペア:

[(1, 19151397), (3, 6383799), (9, 2127933), (27, 709311), (29, 660393), (31, 617787), (81, 236437), (87, 220131), (93, 205929), (261, 73377), (263, 72819), (279, 68643), (783, 24459), (789, 24273), (837, 22881), (899, 21303), (2349, 8153), (2367, 8091), (2511, 7627), (2697, 7101)]