20665268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 41835024

約数和(自身を除く): 21169756

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 97, 194, 221, 241, 388, 442, 482, 884, 964, 1261, 1649, 2522, 3133, 3298, 4097, 5044, 6266, 6596, 8194, 12532, 16388, 21437, 23377, 42874, 46754, 53261, 85748, 93508, 106522, 213044, 303901, 397409, 607802, 794818, 1215604, 1589636, 5166317, 10332634, 20665268]

約数ペア:

[(1, 20665268), (2, 10332634), (4, 5166317), (13, 1589636), (17, 1215604), (26, 794818), (34, 607802), (52, 397409), (68, 303901), (97, 213044), (194, 106522), (221, 93508), (241, 85748), (388, 53261), (442, 46754), (482, 42874), (884, 23377), (964, 21437), (1261, 16388), (1649, 12532), (2522, 8194), (3133, 6596), (3298, 6266), (4097, 5044)]