21109232

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12809}}^1$

素因数の和:12920

約数の個数: 20

約数和(自身を含む): 41299440

約数和(自身を除く): 20190208

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12809, 25618, 51236, 102472, 204944, 1319327, 2638654, 5277308, 10554616, 21109232]

約数ペア:

[(1, 21109232), (2, 10554616), (4, 5277308), (8, 2638654), (16, 1319327), (103, 204944), (206, 102472), (412, 51236), (824, 25618), (1648, 12809)]