2121321

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 3009600

約数和(自身を除く): 888279

約数列:

[1, 3, 29, 37, 87, 111, 659, 1073, 1977, 3219, 19111, 24383, 57333, 73149, 707107, 2121321]

約数ペア:

[(1, 2121321), (3, 707107), (29, 73149), (37, 57333), (87, 24383), (111, 19111), (659, 3219), (1073, 1977)]