20653808

素因数分解:

$2^4\times 7^1\times {\mathrm{184409}}^1$

素因数の和:184424

約数の個数: 20

約数和(自身を含む): 45733680

約数和(自身を除く): 25079872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 184409, 368818, 737636, 1290863, 1475272, 2581726, 2950544, 5163452, 10326904, 20653808]

約数ペア:

[(1, 20653808), (2, 10326904), (4, 5163452), (7, 2950544), (8, 2581726), (14, 1475272), (16, 1290863), (28, 737636), (56, 368818), (112, 184409)]