21228642

素因数分解:

$2^1\times 3^4\times {\mathrm{131041}}^1$

素因数の和:131055

約数の個数: 20

約数和(自身を含む): 47568246

約数和(自身を除く): 26339604

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131041, 262082, 393123, 786246, 1179369, 2358738, 3538107, 7076214, 10614321, 21228642]

約数ペア:

[(1, 21228642), (2, 10614321), (3, 7076214), (6, 3538107), (9, 2358738), (18, 1179369), (27, 786246), (54, 393123), (81, 262082), (162, 131041)]