21715001

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 29299968

約数和(自身を除く): 7584967

約数列:

[1, 7, 11, 17, 53, 77, 119, 187, 313, 371, 583, 901, 1309, 2191, 3443, 4081, 5321, 6307, 9911, 16589, 24101, 37247, 58531, 69377, 116123, 182479, 282013, 409717, 1277353, 1974091, 3102143, 21715001]

約数ペア:

[(1, 21715001), (7, 3102143), (11, 1974091), (17, 1277353), (53, 409717), (77, 282013), (119, 182479), (187, 116123), (313, 69377), (371, 58531), (583, 37247), (901, 24101), (1309, 16589), (2191, 9911), (3443, 6307), (4081, 5321)]