20662213

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 25804800

約数和(自身を除く): 5142587

約数列:

[1, 11, 13, 31, 59, 79, 143, 341, 403, 649, 767, 869, 1027, 1829, 2449, 4433, 4661, 8437, 11297, 20119, 23777, 26939, 31837, 51271, 60593, 144491, 261547, 350207, 666523, 1589401, 1878383, 20662213]

約数ペア:

[(1, 20662213), (11, 1878383), (13, 1589401), (31, 666523), (59, 350207), (79, 261547), (143, 144491), (341, 60593), (403, 51271), (649, 31837), (767, 26939), (869, 23777), (1027, 20119), (1829, 11297), (2449, 8437), (4433, 4661)]