21416872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157477}}^1$

素因数の和:157500

約数の個数: 16

約数和(自身を含む): 42519060

約数和(自身を除く): 21102188

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157477, 314954, 629908, 1259816, 2677109, 5354218, 10708436, 21416872]

約数ペア:

[(1, 21416872), (2, 10708436), (4, 5354218), (8, 2677109), (17, 1259816), (34, 629908), (68, 314954), (136, 157477)]