666579249

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{1021}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 1131754624

約数和(自身を除く): 465175375

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 241, 301, 387, 723, 903, 1021, 1687, 2169, 2709, 3063, 5061, 7147, 9189, 10363, 15183, 21441, 31089, 43903, 64323, 72541, 93267, 131709, 217623, 246061, 307321, 395127, 652869, 738183, 921963, 1722427, 2214549, 2765889, 5167281, 10580623, 15501843, 31741869, 74064361, 95225607, 222193083, 666579249]

約数ペア:

[(1, 666579249), (3, 222193083), (7, 95225607), (9, 74064361), (21, 31741869), (43, 15501843), (63, 10580623), (129, 5167281), (241, 2765889), (301, 2214549), (387, 1722427), (723, 921963), (903, 738183), (1021, 652869), (1687, 395127), (2169, 307321), (2709, 246061), (3063, 217623), (5061, 131709), (7147, 93267), (9189, 72541), (10363, 64323), (15183, 43903), (21441, 31089)]