21036753

素因数分解:

$3^7\times {\mathrm{9619}}^1$

素因数の和:9640

約数の個数: 16

約数和(自身を含む): 31553600

約数和(自身を除く): 10516847

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 9619, 28857, 86571, 259713, 779139, 2337417, 7012251, 21036753]

約数ペア:

[(1, 21036753), (3, 7012251), (9, 2337417), (27, 779139), (81, 259713), (243, 86571), (729, 28857), (2187, 9619)]