21189627

素因数分解:

$3^3\times {\mathrm{331}}^1\times {\mathrm{2371}}^1$

素因数の和:2711

約数の個数: 16

約数和(自身を含む): 31500160

約数和(自身を除く): 10310533

約数列:

[1, 3, 9, 27, 331, 993, 2371, 2979, 7113, 8937, 21339, 64017, 784801, 2354403, 7063209, 21189627]

約数ペア:

[(1, 21189627), (3, 7063209), (9, 2354403), (27, 784801), (331, 64017), (993, 21339), (2371, 8937), (2979, 7113)]