21969808

素因数分解:

$2^4\times 7^1\times {\mathrm{196159}}^1$

素因数の和:196174

約数の個数: 20

約数和(自身を含む): 48647680

約数和(自身を除く): 26677872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 196159, 392318, 784636, 1373113, 1569272, 2746226, 3138544, 5492452, 10984904, 21969808]

約数ペア:

[(1, 21969808), (2, 10984904), (4, 5492452), (7, 3138544), (8, 2746226), (14, 1569272), (16, 1373113), (28, 784636), (56, 392318), (112, 196159)]