20639817

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{1723}}^1$

素因数の和:1762

約数の個数: 24

約数和(自身を含む): 32811168

約数和(自身を除く): 12171351

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 1331, 1723, 3993, 5169, 11979, 15507, 18953, 56859, 170577, 208483, 625449, 1876347, 2293313, 6879939, 20639817]

約数ペア:

[(1, 20639817), (3, 6879939), (9, 2293313), (11, 1876347), (33, 625449), (99, 208483), (121, 170577), (363, 56859), (1089, 18953), (1331, 15507), (1723, 11979), (3993, 5169)]