19788886

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:616

約数の個数: 24

約数和(自身を含む): 32465664

約数和(自身を除く): 12676778

約数列:

[1, 2, 13, 26, 127, 169, 254, 338, 461, 922, 1651, 3302, 5993, 11986, 21463, 42926, 58547, 77909, 117094, 155818, 761111, 1522222, 9894443, 19788886]

約数ペア:

[(1, 19788886), (2, 9894443), (13, 1522222), (26, 761111), (127, 155818), (169, 117094), (254, 77909), (338, 58547), (461, 42926), (922, 21463), (1651, 11986), (3302, 5993)]