18773729

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 22693440

約数和(自身を除く): 3919711

約数列:

[1, 13, 17, 19, 221, 247, 263, 289, 323, 3419, 3757, 4199, 4471, 4997, 5491, 58123, 64961, 71383, 76007, 84949, 988091, 1104337, 1444133, 18773729]

約数ペア:

[(1, 18773729), (13, 1444133), (17, 1104337), (19, 988091), (221, 84949), (247, 76007), (263, 71383), (289, 64961), (323, 58123), (3419, 5491), (3757, 4997), (4199, 4471)]