21320824

素因数分解:

$2^3\times 7^1\times {\mathrm{380729}}^1$

素因数の和:380742

約数の個数: 16

約数和(自身を含む): 45687600

約数和(自身を除く): 24366776

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 380729, 761458, 1522916, 2665103, 3045832, 5330206, 10660412, 21320824]

約数ペア:

[(1, 21320824), (2, 10660412), (4, 5330206), (7, 3045832), (8, 2665103), (14, 1522916), (28, 761458), (56, 380729)]