21571606

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:648

約数の個数: 32

約数和(自身を含む): 39424320

約数和(自身を除く): 17852714

約数列:

[1, 2, 7, 14, 17, 34, 119, 233, 238, 389, 466, 778, 1631, 2723, 3262, 3961, 5446, 6613, 7922, 13226, 27727, 46291, 55454, 90637, 92582, 181274, 634459, 1268918, 1540829, 3081658, 10785803, 21571606]

約数ペア:

[(1, 21571606), (2, 10785803), (7, 3081658), (14, 1540829), (17, 1268918), (34, 634459), (119, 181274), (233, 92582), (238, 90637), (389, 55454), (466, 46291), (778, 27727), (1631, 13226), (2723, 7922), (3262, 6613), (3961, 5446)]