21826611

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 34380800

約数和(自身を除く): 12554189

約数列:

[1, 3, 9, 19, 27, 57, 157, 171, 271, 471, 513, 813, 1413, 2439, 2983, 4239, 5149, 7317, 8949, 15447, 26847, 42547, 46341, 80541, 127641, 139023, 382923, 808393, 1148769, 2425179, 7275537, 21826611]

約数ペア:

[(1, 21826611), (3, 7275537), (9, 2425179), (19, 1148769), (27, 808393), (57, 382923), (157, 139023), (171, 127641), (271, 80541), (471, 46341), (513, 42547), (813, 26847), (1413, 15447), (2439, 8949), (2983, 7317), (4239, 5149)]