21188401

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:928

約数の個数: 16

約数和(自身を含む): 24270400

約数和(自身を除く): 3081999

約数列:

[1, 13, 19, 109, 247, 787, 1417, 2071, 10231, 14953, 26923, 85783, 194389, 1115179, 1629877, 21188401]

約数ペア:

[(1, 21188401), (13, 1629877), (19, 1115179), (109, 194389), (247, 85783), (787, 26923), (1417, 14953), (2071, 10231)]