21237018

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1381}}^1$

素因数の和:1630

約数の個数: 32

約数和(自身を含む): 46567872

約数和(自身を除く): 25330854

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 233, 466, 699, 1381, 1398, 2563, 2762, 4143, 5126, 7689, 8286, 15191, 15378, 30382, 45573, 91146, 321773, 643546, 965319, 1930638, 3539503, 7079006, 10618509, 21237018]

約数ペア:

[(1, 21237018), (2, 10618509), (3, 7079006), (6, 3539503), (11, 1930638), (22, 965319), (33, 643546), (66, 321773), (233, 91146), (466, 45573), (699, 30382), (1381, 15378), (1398, 15191), (2563, 8286), (2762, 7689), (4143, 5126)]