21530943

素因数分解:

$3^2\times 7^2\times {\mathrm{48823}}^1$

素因数の和:48843

約数の個数: 18

約数和(自身を含む): 36178584

約数和(自身を除く): 14647641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 48823, 146469, 341761, 439407, 1025283, 2392327, 3075849, 7176981, 21530943]

約数ペア:

[(1, 21530943), (3, 7176981), (7, 3075849), (9, 2392327), (21, 1025283), (49, 439407), (63, 341761), (147, 146469), (441, 48823)]