19105227

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1583}}^1$

素因数の和:1744

約数の個数: 20

約数和(自身を含む): 28749600

約数和(自身を除く): 9644373

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 1583, 4023, 4749, 12069, 14247, 42741, 128223, 235867, 707601, 2122803, 6368409, 19105227]

約数ペア:

[(1, 19105227), (3, 6368409), (9, 2122803), (27, 707601), (81, 235867), (149, 128223), (447, 42741), (1341, 14247), (1583, 12069), (4023, 4749)]