20949710

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23539}}^1$

素因数の和:23635

約数の個数: 16

約数和(自身を含む): 38134800

約数和(自身を除く): 17185090

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23539, 47078, 117695, 235390, 2094971, 4189942, 10474855, 20949710]

約数ペア:

[(1, 20949710), (2, 10474855), (5, 4189942), (10, 2094971), (89, 235390), (178, 117695), (445, 47078), (890, 23539)]