209213356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{541}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 435976128

約数和(自身を除く): 226762772

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 47, 68, 94, 121, 187, 188, 242, 374, 484, 517, 541, 748, 799, 1034, 1082, 1598, 2057, 2068, 2164, 3196, 4114, 5687, 5951, 8228, 8789, 9197, 11374, 11902, 17578, 18394, 22748, 23804, 25427, 35156, 36788, 50854, 65461, 96679, 101167, 101708, 130922, 193358, 202334, 261844, 279697, 386716, 404668, 432259, 559394, 864518, 1112837, 1118788, 1729036, 2225674, 3076667, 4451348, 4754849, 6153334, 9509698, 12306668, 19019396, 52303339, 104606678, 209213356]

約数ペア:

[(1, 209213356), (2, 104606678), (4, 52303339), (11, 19019396), (17, 12306668), (22, 9509698), (34, 6153334), (44, 4754849), (47, 4451348), (68, 3076667), (94, 2225674), (121, 1729036), (187, 1118788), (188, 1112837), (242, 864518), (374, 559394), (484, 432259), (517, 404668), (541, 386716), (748, 279697), (799, 261844), (1034, 202334), (1082, 193358), (1598, 130922), (2057, 101708), (2068, 101167), (2164, 96679), (3196, 65461), (4114, 50854), (5687, 36788), (5951, 35156), (8228, 25427), (8789, 23804), (9197, 22748), (11374, 18394), (11902, 17578)]