18878691

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{4441}}^1$

素因数の和:4566

約数の個数: 16

約数和(自身を含む): 27362720

約数和(自身を除く): 8484029

約数列:

[1, 3, 13, 39, 109, 327, 1417, 4251, 4441, 13323, 57733, 173199, 484069, 1452207, 6292897, 18878691]

約数ペア:

[(1, 18878691), (3, 6292897), (13, 1452207), (39, 484069), (109, 173199), (327, 57733), (1417, 13323), (4251, 4441)]