213323621

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^2\times {\mathrm{257}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 260930880

約数和(自身を除く): 47607259

約数列:

[1, 7, 19, 79, 133, 257, 553, 1501, 1799, 4883, 6241, 10507, 20303, 34181, 43687, 118579, 142121, 385757, 830053, 1603937, 2700299, 11227559, 30474803, 213323621]

約数ペア:

[(1, 213323621), (7, 30474803), (19, 11227559), (79, 2700299), (133, 1603937), (257, 830053), (553, 385757), (1501, 142121), (1799, 118579), (4883, 43687), (6241, 34181), (10507, 20303)]