21321412

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7393}}^1$

素因数の和:7507

約数の個数: 24

約数和(自身を含む): 43062656

約数和(自身を除く): 21741244

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 7393, 14786, 29572, 51751, 103502, 207004, 761479, 1522958, 3045916, 5330353, 10660706, 21321412]

約数ペア:

[(1, 21321412), (2, 10660706), (4, 5330353), (7, 3045916), (14, 1522958), (28, 761479), (103, 207004), (206, 103502), (412, 51751), (721, 29572), (1442, 14786), (2884, 7393)]