20123728

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12211}}^1$

素因数の和:12322

約数の個数: 20

約数和(自身を含む): 39371488

約数和(自身を除く): 19247760

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12211, 24422, 48844, 97688, 195376, 1257733, 2515466, 5030932, 10061864, 20123728]

約数ペア:

[(1, 20123728), (2, 10061864), (4, 5030932), (8, 2515466), (16, 1257733), (103, 195376), (206, 97688), (412, 48844), (824, 24422), (1648, 12211)]