21557233

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:444

約数の個数: 16

約数和(自身を含む): 23417856

約数和(自身を除く): 1860623

約数列:

[1, 23, 43, 71, 307, 989, 1633, 3053, 7061, 13201, 21797, 70219, 303623, 501331, 937271, 21557233]

約数ペア:

[(1, 21557233), (23, 937271), (43, 501331), (71, 303623), (307, 70219), (989, 21797), (1633, 13201), (3053, 7061)]