21260286

素因数分解:

$2^1\times 3^3\times {\mathrm{393709}}^1$

素因数の和:393720

約数の個数: 16

約数和(自身を含む): 47245200

約数和(自身を除く): 25984914

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 393709, 787418, 1181127, 2362254, 3543381, 7086762, 10630143, 21260286]

約数ペア:

[(1, 21260286), (2, 10630143), (3, 7086762), (6, 3543381), (9, 2362254), (18, 1181127), (27, 787418), (54, 393709)]