21437564

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{5419}}^1$

素因数の和:5489

約数の個数: 24

約数和(自身を含む): 40064640

約数和(自身を除く): 18627076

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956, 5419, 10838, 21676, 124637, 233017, 249274, 466034, 498548, 932068, 5359391, 10718782, 21437564]

約数ペア:

[(1, 21437564), (2, 10718782), (4, 5359391), (23, 932068), (43, 498548), (46, 466034), (86, 249274), (92, 233017), (172, 124637), (989, 21676), (1978, 10838), (3956, 5419)]