19859290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{180539}}^1$

素因数の和:180557

約数の個数: 16

約数和(自身を含む): 38996640

約数和(自身を除く): 19137350

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 180539, 361078, 902695, 1805390, 1985929, 3971858, 9929645, 19859290]

約数ペア:

[(1, 19859290), (2, 9929645), (5, 3971858), (10, 1985929), (11, 1805390), (22, 902695), (55, 361078), (110, 180539)]