21228534

素因数分解:

$2^1\times 3^3\times {\mathrm{393121}}^1$

素因数の和:393132

約数の個数: 16

約数和(自身を含む): 47174640

約数和(自身を除く): 25946106

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 393121, 786242, 1179363, 2358726, 3538089, 7076178, 10614267, 21228534]

約数ペア:

[(1, 21228534), (2, 10614267), (3, 7076178), (6, 3538089), (9, 2358726), (18, 1179363), (27, 786242), (54, 393121)]