19661590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151243}}^1$

素因数の和:151263

約数の個数: 16

約数和(自身を含む): 38113488

約数和(自身を除く): 18451898

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 151243, 302486, 756215, 1512430, 1966159, 3932318, 9830795, 19661590]

約数ペア:

[(1, 19661590), (2, 9830795), (5, 3932318), (10, 1966159), (13, 1512430), (26, 756215), (65, 302486), (130, 151243)]