213424701

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{3407}}^1$

素因数の和:3593

約数の個数: 32

約数和(自身を含む): 344616960

約数和(自身を除く): 131192259

約数列:

[1, 3, 7, 19, 21, 57, 133, 157, 399, 471, 1099, 2983, 3297, 3407, 8949, 10221, 20881, 23849, 62643, 64733, 71547, 194199, 453131, 534899, 1359393, 1604697, 3744293, 10163081, 11232879, 30489243, 71141567, 213424701]

約数ペア:

[(1, 213424701), (3, 71141567), (7, 30489243), (19, 11232879), (21, 10163081), (57, 3744293), (133, 1604697), (157, 1359393), (399, 534899), (471, 453131), (1099, 194199), (2983, 71547), (3297, 64733), (3407, 62643), (8949, 23849), (10221, 20881)]