20722527

素因数分解:

$3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1321}}^1$

素因数の和:1420

約数の個数: 32

約数和(自身を含む): 35535360

約数和(自身を除く): 14812833

約数列:

[1, 3, 7, 9, 21, 27, 63, 83, 189, 249, 581, 747, 1321, 1743, 2241, 3963, 5229, 9247, 11889, 15687, 27741, 35667, 83223, 109643, 249669, 328929, 767501, 986787, 2302503, 2960361, 6907509, 20722527]

約数ペア:

[(1, 20722527), (3, 6907509), (7, 2960361), (9, 2302503), (21, 986787), (27, 767501), (63, 328929), (83, 249669), (189, 109643), (249, 83223), (581, 35667), (747, 27741), (1321, 15687), (1743, 11889), (2241, 9247), (3963, 5229)]