21268386

素因数分解:

$2^1\times 3^3\times {\mathrm{393859}}^1$

素因数の和:393870

約数の個数: 16

約数和(自身を含む): 47263200

約数和(自身を除く): 25994814

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 393859, 787718, 1181577, 2363154, 3544731, 7089462, 10634193, 21268386]

約数ペア:

[(1, 21268386), (2, 10634193), (3, 7089462), (6, 3544731), (9, 2363154), (18, 1181577), (27, 787718), (54, 393859)]