20180667

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{929}}^1$

素因数の和:1502

約数の個数: 16

約数和(自身を含む): 29060640

約数和(自身を除く): 8879973

約数列:

[1, 3, 13, 39, 557, 929, 1671, 2787, 7241, 12077, 21723, 36231, 517453, 1552359, 6726889, 20180667]

約数ペア:

[(1, 20180667), (3, 6726889), (13, 1552359), (39, 517453), (557, 36231), (929, 21723), (1671, 12077), (2787, 7241)]