20401784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{196171}}^1$

素因数の和:196190

約数の個数: 16

約数和(自身を含む): 41196120

約数和(自身を除く): 20794336

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 196171, 392342, 784684, 1569368, 2550223, 5100446, 10200892, 20401784]

約数ペア:

[(1, 20401784), (2, 10200892), (4, 5100446), (8, 2550223), (13, 1569368), (26, 784684), (52, 392342), (104, 196171)]