19789913

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{547}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 24489024

約数和(自身を除く): 4699111

約数列:

[1, 11, 13, 23, 121, 143, 253, 299, 547, 1573, 2783, 3289, 6017, 7111, 12581, 36179, 66187, 78221, 138391, 163553, 860431, 1522301, 1799083, 19789913]

約数ペア:

[(1, 19789913), (11, 1799083), (13, 1522301), (23, 860431), (121, 163553), (143, 138391), (253, 78221), (299, 66187), (547, 36179), (1573, 12581), (2783, 7111), (3289, 6017)]