21938521

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2837}}^1$

素因数の和:2904

約数の個数: 16

約数和(自身を含む): 25882560

約数和(自身を除く): 3944039

約数列:

[1, 11, 19, 37, 209, 407, 703, 2837, 7733, 31207, 53903, 104969, 592933, 1154659, 1994411, 21938521]

約数ペア:

[(1, 21938521), (11, 1994411), (19, 1154659), (37, 592933), (209, 104969), (407, 53903), (703, 31207), (2837, 7733)]