21357154

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2729}}^1$

素因数の和:2794

約数の個数: 32

約数和(自身を含む): 40360320

約数和(自身を除く): 19003166

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 182, 301, 559, 602, 1118, 2729, 3913, 5458, 7826, 19103, 35477, 38206, 70954, 117347, 234694, 248339, 496678, 821429, 1525511, 1642858, 3051022, 10678577, 21357154]

約数ペア:

[(1, 21357154), (2, 10678577), (7, 3051022), (13, 1642858), (14, 1525511), (26, 821429), (43, 496678), (86, 248339), (91, 234694), (182, 117347), (301, 70954), (559, 38206), (602, 35477), (1118, 19103), (2729, 7826), (3913, 5458)]