20004454

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:412

約数の個数: 24

約数和(自身を含む): 32095440

約数和(自身を除く): 12090986

約数列:

[1, 2, 19, 38, 103, 206, 269, 361, 538, 722, 1957, 3914, 5111, 10222, 27707, 37183, 55414, 74366, 97109, 194218, 526433, 1052866, 10002227, 20004454]

約数ペア:

[(1, 20004454), (2, 10002227), (19, 1052866), (38, 526433), (103, 194218), (206, 97109), (269, 74366), (361, 55414), (538, 37183), (722, 27707), (1957, 10222), (3914, 5111)]