21421323

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30911}}^1$

素因数の和:30935

約数の個数: 24

約数和(自身を含む): 38578176

約数和(自身を除く): 17156853

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30911, 92733, 216377, 278199, 340021, 649131, 1020063, 1947393, 2380147, 3060189, 7140441, 21421323]

約数ペア:

[(1, 21421323), (3, 7140441), (7, 3060189), (9, 2380147), (11, 1947393), (21, 1020063), (33, 649131), (63, 340021), (77, 278199), (99, 216377), (231, 92733), (693, 30911)]