221337215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 296524800

約数和(自身を除く): 75187585

約数列:

[1, 5, 11, 55, 89, 103, 439, 445, 515, 979, 1133, 2195, 4829, 4895, 5665, 9167, 24145, 39071, 45217, 45835, 100837, 195355, 226085, 429781, 497387, 504185, 2148905, 2486935, 4024313, 20121565, 44267443, 221337215]

約数ペア:

[(1, 221337215), (5, 44267443), (11, 20121565), (55, 4024313), (89, 2486935), (103, 2148905), (439, 504185), (445, 497387), (515, 429781), (979, 226085), (1133, 195355), (2195, 100837), (4829, 45835), (4895, 45217), (5665, 39071), (9167, 24145)]