21947876

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{673}}^1$

素因数の和:971

約数の個数: 24

約数和(自身を含む): 39857664

約数和(自身を除く): 17909788

約数列:

[1, 2, 4, 31, 62, 124, 263, 526, 673, 1052, 1346, 2692, 8153, 16306, 20863, 32612, 41726, 83452, 176999, 353998, 707996, 5486969, 10973938, 21947876]

約数ペア:

[(1, 21947876), (2, 10973938), (4, 5486969), (31, 707996), (62, 353998), (124, 176999), (263, 83452), (526, 41726), (673, 32612), (1052, 20863), (1346, 16306), (2692, 8153)]