12991977

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{569}}^1$

素因数の和:677

約数の個数: 24

約数和(自身を含む): 19562400

約数和(自身を除く): 6570423

約数列:

[1, 3, 9, 43, 59, 129, 177, 387, 531, 569, 1707, 2537, 5121, 7611, 22833, 24467, 33571, 73401, 100713, 220203, 302139, 1443553, 4330659, 12991977]

約数ペア:

[(1, 12991977), (3, 4330659), (9, 1443553), (43, 302139), (59, 220203), (129, 100713), (177, 73401), (387, 33571), (531, 24467), (569, 22833), (1707, 7611), (2537, 5121)]