21270276

素因数分解:

$2^2\times 3^5\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 56667520

約数和(自身を除く): 35397244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 79, 81, 108, 158, 162, 237, 243, 277, 316, 324, 474, 486, 554, 711, 831, 948, 972, 1108, 1422, 1662, 2133, 2493, 2844, 3324, 4266, 4986, 6399, 7479, 8532, 9972, 12798, 14958, 19197, 21883, 22437, 25596, 29916, 38394, 43766, 44874, 65649, 67311, 76788, 87532, 89748, 131298, 134622, 196947, 262596, 269244, 393894, 590841, 787788, 1181682, 1772523, 2363364, 3545046, 5317569, 7090092, 10635138, 21270276]

約数ペア:

[(1, 21270276), (2, 10635138), (3, 7090092), (4, 5317569), (6, 3545046), (9, 2363364), (12, 1772523), (18, 1181682), (27, 787788), (36, 590841), (54, 393894), (79, 269244), (81, 262596), (108, 196947), (158, 134622), (162, 131298), (237, 89748), (243, 87532), (277, 76788), (316, 67311), (324, 65649), (474, 44874), (486, 43766), (554, 38394), (711, 29916), (831, 25596), (948, 22437), (972, 21883), (1108, 19197), (1422, 14958), (1662, 12798), (2133, 9972), (2493, 8532), (2844, 7479), (3324, 6399), (4266, 4986)]