278311553

素因数分解:

${\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{997}}^1$

素因数の和:1316

約数の個数: 16

約数和(自身を含む): 304310160

約数和(自身を除く): 25998607

約数列:

[1, 13, 109, 197, 997, 1417, 2561, 12961, 21473, 108673, 196409, 279149, 1412749, 2553317, 21408581, 278311553]

約数ペア:

[(1, 278311553), (13, 21408581), (109, 2553317), (197, 1412749), (997, 279149), (1417, 196409), (2561, 108673), (12961, 21473)]