21281949

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3083}}^1$

素因数の和:3161

約数の個数: 24

約数和(自身を含む): 33677280

約数和(自身を除く): 12395331

約数列:

[1, 3, 9, 13, 39, 59, 117, 177, 531, 767, 2301, 3083, 6903, 9249, 27747, 40079, 120237, 181897, 360711, 545691, 1637073, 2364661, 7093983, 21281949]

約数ペア:

[(1, 21281949), (3, 7093983), (9, 2364661), (13, 1637073), (39, 545691), (59, 360711), (117, 181897), (177, 120237), (531, 40079), (767, 27747), (2301, 9249), (3083, 6903)]