21224792

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{4139}}^1$

素因数の和:4786

約数の個数: 16

約数和(自身を含む): 39868200

約数和(自身を除く): 18643408

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 4139, 5128, 8278, 16556, 33112, 2653099, 5306198, 10612396, 21224792]

約数ペア:

[(1, 21224792), (2, 10612396), (4, 5306198), (8, 2653099), (641, 33112), (1282, 16556), (2564, 8278), (4139, 5128)]