81405636

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{521831}}^1$

素因数の和:521851

約数の個数: 24

約数和(自身を含む): 204558144

約数和(自身を除く): 123152508

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 521831, 1043662, 1565493, 2087324, 3130986, 6261972, 6783803, 13567606, 20351409, 27135212, 40702818, 81405636]

約数ペア:

[(1, 81405636), (2, 40702818), (3, 27135212), (4, 20351409), (6, 13567606), (12, 6783803), (13, 6261972), (26, 3130986), (39, 2087324), (52, 1565493), (78, 1043662), (156, 521831)]