21159496

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{25679}}^1$

素因数の和:25788

約数の個数: 16

約数和(自身を含む): 40060800

約数和(自身を除く): 18901304

約数列:

[1, 2, 4, 8, 103, 206, 412, 824, 25679, 51358, 102716, 205432, 2644937, 5289874, 10579748, 21159496]

約数ペア:

[(1, 21159496), (2, 10579748), (4, 5289874), (8, 2644937), (103, 205432), (206, 102716), (412, 51358), (824, 25679)]