20039787

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{577}}^1$

素因数の和:827

約数の個数: 24

約数和(自身を含む): 30837456

約数和(自身を除く): 10797669

約数列:

[1, 3, 9, 17, 51, 153, 227, 577, 681, 1731, 2043, 3859, 5193, 9809, 11577, 29427, 34731, 88281, 130979, 392937, 1178811, 2226643, 6679929, 20039787]

約数ペア:

[(1, 20039787), (3, 6679929), (9, 2226643), (17, 1178811), (51, 392937), (153, 130979), (227, 88281), (577, 34731), (681, 29427), (1731, 11577), (2043, 9809), (3859, 5193)]