21758044

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1723}}^1$

素因数の和:1786

約数の個数: 48

約数和(自身を含む): 48658176

約数和(自身を除く): 26900132

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 77, 82, 154, 164, 287, 308, 451, 574, 902, 1148, 1723, 1804, 3157, 3446, 6314, 6892, 12061, 12628, 18953, 24122, 37906, 48244, 70643, 75812, 132671, 141286, 265342, 282572, 494501, 530684, 777073, 989002, 1554146, 1978004, 3108292, 5439511, 10879022, 21758044]

約数ペア:

[(1, 21758044), (2, 10879022), (4, 5439511), (7, 3108292), (11, 1978004), (14, 1554146), (22, 989002), (28, 777073), (41, 530684), (44, 494501), (77, 282572), (82, 265342), (154, 141286), (164, 132671), (287, 75812), (308, 70643), (451, 48244), (574, 37906), (902, 24122), (1148, 18953), (1723, 12628), (1804, 12061), (3157, 6892), (3446, 6314)]