19478511

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{727}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 30474080

約数和(自身を除く): 10995569

約数列:

[1, 3, 9, 13, 39, 117, 229, 687, 727, 2061, 2181, 2977, 6543, 8931, 9451, 26793, 28353, 85059, 166483, 499449, 1498347, 2164279, 6492837, 19478511]

約数ペア:

[(1, 19478511), (3, 6492837), (9, 2164279), (13, 1498347), (39, 499449), (117, 166483), (229, 85059), (687, 28353), (727, 26793), (2061, 9451), (2181, 8931), (2977, 6543)]