21204126

素因数分解:

$2^1\times 3^3\times {\mathrm{392669}}^1$

素因数の和:392680

約数の個数: 16

約数和(自身を含む): 47120400

約数和(自身を除く): 25916274

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 392669, 785338, 1178007, 2356014, 3534021, 7068042, 10602063, 21204126]

約数ペア:

[(1, 21204126), (2, 10602063), (3, 7068042), (6, 3534021), (9, 2356014), (18, 1178007), (27, 785338), (54, 392669)]