21587668

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{739}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 38746400

約数和(自身を除く): 17158732

約数列:

[1, 2, 4, 67, 109, 134, 218, 268, 436, 739, 1478, 2956, 7303, 14606, 29212, 49513, 80551, 99026, 161102, 198052, 322204, 5396917, 10793834, 21587668]

約数ペア:

[(1, 21587668), (2, 10793834), (4, 5396917), (67, 322204), (109, 198052), (134, 161102), (218, 99026), (268, 80551), (436, 49513), (739, 29212), (1478, 14606), (2956, 7303)]