19904283

素因数分解:

$3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1637}}^1$

素因数の和:1843

約数の個数: 24

約数和(自身を含む): 33048288

約数和(自身を除く): 13144005

約数列:

[1, 3, 7, 9, 21, 63, 193, 579, 1351, 1637, 1737, 4053, 4911, 11459, 12159, 14733, 34377, 103131, 315941, 947823, 2211587, 2843469, 6634761, 19904283]

約数ペア:

[(1, 19904283), (3, 6634761), (7, 2843469), (9, 2211587), (21, 947823), (63, 315941), (193, 103131), (579, 34377), (1351, 14733), (1637, 12159), (1737, 11459), (4053, 4911)]