20805093

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 34107480

約数和(自身を除く): 13302387

約数列:

[1, 3, 9, 17, 27, 29, 51, 81, 87, 153, 261, 459, 493, 521, 783, 1377, 1479, 1563, 2349, 4437, 4689, 8857, 13311, 14067, 15109, 26571, 39933, 42201, 45327, 79713, 135981, 239139, 256853, 407943, 717417, 770559, 1223829, 2311677, 6935031, 20805093]

約数ペア:

[(1, 20805093), (3, 6935031), (9, 2311677), (17, 1223829), (27, 770559), (29, 717417), (51, 407943), (81, 256853), (87, 239139), (153, 135981), (261, 79713), (459, 45327), (493, 42201), (521, 39933), (783, 26571), (1377, 15109), (1479, 14067), (1563, 13311), (2349, 8857), (4437, 4689)]