21147313

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 23901696

約数和(自身を除く): 2754383

約数列:

[1, 11, 37, 223, 233, 407, 2453, 2563, 8251, 8621, 51959, 90761, 94831, 571549, 1922483, 21147313]

約数ペア:

[(1, 21147313), (11, 1922483), (37, 571549), (223, 94831), (233, 90761), (407, 51959), (2453, 8621), (2563, 8251)]