16805313

素因数分解:

$3^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{277}}^1$

素因数の和:403

約数の個数: 40

約数和(自身を含む): 29063232

約数和(自身を除く): 12257919

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 107, 189, 277, 321, 567, 749, 831, 963, 1939, 2247, 2493, 2889, 5817, 6741, 7479, 8667, 17451, 20223, 22437, 29639, 52353, 60669, 88917, 157059, 207473, 266751, 622419, 800253, 1867257, 2400759, 5601771, 16805313]

約数ペア:

[(1, 16805313), (3, 5601771), (7, 2400759), (9, 1867257), (21, 800253), (27, 622419), (63, 266751), (81, 207473), (107, 157059), (189, 88917), (277, 60669), (321, 52353), (567, 29639), (749, 22437), (831, 20223), (963, 17451), (1939, 8667), (2247, 7479), (2493, 6741), (2889, 5817)]