21364292

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:827

約数の個数: 24

約数和(自身を含む): 38497536

約数和(自身を除く): 17133244

約数列:

[1, 2, 4, 43, 86, 172, 223, 446, 557, 892, 1114, 2228, 9589, 19178, 23951, 38356, 47902, 95804, 124211, 248422, 496844, 5341073, 10682146, 21364292]

約数ペア:

[(1, 21364292), (2, 10682146), (4, 5341073), (43, 496844), (86, 248422), (172, 124211), (223, 95804), (446, 47902), (557, 38356), (892, 23951), (1114, 19178), (2228, 9589)]