18559328

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 38537856

約数和(自身を除く): 19978528

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 106, 124, 212, 248, 353, 424, 496, 706, 848, 992, 1412, 1643, 1696, 2824, 3286, 5648, 6572, 10943, 11296, 13144, 18709, 21886, 26288, 37418, 43772, 52576, 74836, 87544, 149672, 175088, 299344, 350176, 579979, 598688, 1159958, 2319916, 4639832, 9279664, 18559328]

約数ペア:

[(1, 18559328), (2, 9279664), (4, 4639832), (8, 2319916), (16, 1159958), (31, 598688), (32, 579979), (53, 350176), (62, 299344), (106, 175088), (124, 149672), (212, 87544), (248, 74836), (353, 52576), (424, 43772), (496, 37418), (706, 26288), (848, 21886), (992, 18709), (1412, 13144), (1643, 11296), (1696, 10943), (2824, 6572), (3286, 5648)]