26721513

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 49795200

約数和(自身を除く): 23073687

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 59, 63, 79, 91, 117, 147, 177, 237, 273, 413, 441, 531, 553, 637, 711, 767, 819, 1027, 1239, 1659, 1911, 2301, 2891, 3081, 3717, 3871, 4661, 4977, 5369, 5733, 6903, 7189, 8673, 9243, 11613, 13983, 16107, 21567, 26019, 32627, 34839, 37583, 41949, 48321, 50323, 60593, 64701, 97881, 112749, 150969, 181779, 228389, 293643, 338247, 424151, 452907, 545337, 685167, 1272453, 2055501, 2969057, 3817359, 8907171, 26721513]

約数ペア:

[(1, 26721513), (3, 8907171), (7, 3817359), (9, 2969057), (13, 2055501), (21, 1272453), (39, 685167), (49, 545337), (59, 452907), (63, 424151), (79, 338247), (91, 293643), (117, 228389), (147, 181779), (177, 150969), (237, 112749), (273, 97881), (413, 64701), (441, 60593), (531, 50323), (553, 48321), (637, 41949), (711, 37583), (767, 34839), (819, 32627), (1027, 26019), (1239, 21567), (1659, 16107), (1911, 13983), (2301, 11613), (2891, 9243), (3081, 8673), (3717, 7189), (3871, 6903), (4661, 5733), (4977, 5369)]