1821716

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 3503304

約数和(自身を除く): 1681588

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 661, 689, 1322, 1378, 2644, 2756, 8593, 17186, 34372, 35033, 70066, 140132, 455429, 910858, 1821716]

約数ペア:

[(1, 1821716), (2, 910858), (4, 455429), (13, 140132), (26, 70066), (52, 35033), (53, 34372), (106, 17186), (212, 8593), (661, 2756), (689, 2644), (1322, 1378)]