21383328

素因数分解:

$2^5\times 3^1\times {\mathrm{353}}^1\times {\mathrm{631}}^1$

素因数の和:997

約数の個数: 48

約数和(自身を含む): 56379456

約数和(自身を除く): 34996128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 353, 631, 706, 1059, 1262, 1412, 1893, 2118, 2524, 2824, 3786, 4236, 5048, 5648, 7572, 8472, 10096, 11296, 15144, 16944, 20192, 30288, 33888, 60576, 222743, 445486, 668229, 890972, 1336458, 1781944, 2672916, 3563888, 5345832, 7127776, 10691664, 21383328]

約数ペア:

[(1, 21383328), (2, 10691664), (3, 7127776), (4, 5345832), (6, 3563888), (8, 2672916), (12, 1781944), (16, 1336458), (24, 890972), (32, 668229), (48, 445486), (96, 222743), (353, 60576), (631, 33888), (706, 30288), (1059, 20192), (1262, 16944), (1412, 15144), (1893, 11296), (2118, 10096), (2524, 8472), (2824, 7572), (3786, 5648), (4236, 5048)]