21222712

素因数分解:

$2^3\times 7^1\times {\mathrm{378977}}^1$

素因数の和:378990

約数の個数: 16

約数和(自身を含む): 45477360

約数和(自身を除く): 24254648

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 378977, 757954, 1515908, 2652839, 3031816, 5305678, 10611356, 21222712]

約数ペア:

[(1, 21222712), (2, 10611356), (4, 5305678), (7, 3031816), (8, 2652839), (14, 1515908), (28, 757954), (56, 378977)]