21763203

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 37800576

約数和(自身を除く): 16037373

約数列:

[1, 3, 7, 11, 21, 33, 43, 49, 77, 129, 147, 231, 301, 313, 473, 539, 903, 939, 1419, 1617, 2107, 2191, 3311, 3443, 6321, 6573, 9933, 10329, 13459, 15337, 23177, 24101, 40377, 46011, 69531, 72303, 94213, 148049, 168707, 282639, 444147, 506121, 659491, 1036343, 1978473, 3109029, 7254401, 21763203]

約数ペア:

[(1, 21763203), (3, 7254401), (7, 3109029), (11, 1978473), (21, 1036343), (33, 659491), (43, 506121), (49, 444147), (77, 282639), (129, 168707), (147, 148049), (231, 94213), (301, 72303), (313, 69531), (473, 46011), (539, 40377), (903, 24101), (939, 23177), (1419, 15337), (1617, 13459), (2107, 10329), (2191, 9933), (3311, 6573), (3443, 6321)]