21086824

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{239623}}^1$

素因数の和:239640

約数の個数: 16

約数和(自身を含む): 43132320

約数和(自身を除く): 22045496

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 239623, 479246, 958492, 1916984, 2635853, 5271706, 10543412, 21086824]

約数ペア:

[(1, 21086824), (2, 10543412), (4, 5271706), (8, 2635853), (11, 1916984), (22, 958492), (44, 479246), (88, 239623)]