20851919415

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1\times {\mathrm{37493}}^1$

素因数の和:38248

約数の個数: 48

約数和(自身を含む): 38323067328

約数和(自身を除く): 17471147913

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 727, 765, 2181, 3635, 6543, 10905, 12359, 32715, 37077, 37493, 61795, 111231, 112479, 185385, 187465, 337437, 556155, 562395, 637381, 1687185, 1912143, 3186905, 5736429, 9560715, 27257411, 28682145, 81772233, 136287055, 245316699, 408861165, 463375987, 1226583495, 1390127961, 2316879935, 4170383883, 6950639805, 20851919415]

約数ペア:

[(1, 20851919415), (3, 6950639805), (5, 4170383883), (9, 2316879935), (15, 1390127961), (17, 1226583495), (45, 463375987), (51, 408861165), (85, 245316699), (153, 136287055), (255, 81772233), (727, 28682145), (765, 27257411), (2181, 9560715), (3635, 5736429), (6543, 3186905), (10905, 1912143), (12359, 1687185), (32715, 637381), (37077, 562395), (37493, 556155), (61795, 337437), (111231, 187465), (112479, 185385)]