28734321

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2347}}^1$

素因数の和:2421

約数の個数: 32

約数和(自身を含む): 48688128

約数和(自身を除く): 19953807

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 159, 231, 371, 583, 1113, 1749, 2347, 4081, 7041, 12243, 16429, 25817, 49287, 77451, 124391, 180719, 373173, 542157, 870737, 1368301, 2612211, 4104903, 9578107, 28734321]

約数ペア:

[(1, 28734321), (3, 9578107), (7, 4104903), (11, 2612211), (21, 1368301), (33, 870737), (53, 542157), (77, 373173), (159, 180719), (231, 124391), (371, 77451), (583, 49287), (1113, 25817), (1749, 16429), (2347, 12243), (4081, 7041)]