21269499

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 31648320

約数和(自身を除く): 10378821

約数列:

[1, 3, 17, 29, 51, 73, 87, 197, 219, 493, 591, 1241, 1479, 2117, 3349, 3723, 5713, 6351, 10047, 14381, 17139, 35989, 43143, 97121, 107967, 244477, 291363, 417049, 733431, 1251147, 7089833, 21269499]

約数ペア:

[(1, 21269499), (3, 7089833), (17, 1251147), (29, 733431), (51, 417049), (73, 291363), (87, 244477), (197, 107967), (219, 97121), (493, 43143), (591, 35989), (1241, 17139), (1479, 14381), (2117, 10047), (3349, 6351), (3723, 5713)]