21866824

素因数分解:

$2^3\times 7^1\times {\mathrm{390479}}^1$

素因数の和:390492

約数の個数: 16

約数和(自身を含む): 46857600

約数和(自身を除く): 24990776

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 390479, 780958, 1561916, 2733353, 3123832, 5466706, 10933412, 21866824]

約数ペア:

[(1, 21866824), (2, 10933412), (4, 5466706), (7, 3123832), (8, 2733353), (14, 1561916), (28, 780958), (56, 390479)]