20779426

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{5309}}^1$

素因数の和:5433

約数の個数: 16

約数和(自身を含む): 33134400

約数和(自身を除く): 12354974

約数列:

[1, 2, 19, 38, 103, 206, 1957, 3914, 5309, 10618, 100871, 201742, 546827, 1093654, 10389713, 20779426]

約数ペア:

[(1, 20779426), (2, 10389713), (19, 1093654), (38, 546827), (103, 201742), (206, 100871), (1957, 10618), (3914, 5309)]