81384015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{727}}^1$

素因数の和:1191

約数の個数: 32

約数和(自身を含む): 138378240

約数和(自身を除く): 56994225

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 439, 727, 1317, 2181, 2195, 3635, 6585, 7463, 10905, 12359, 22389, 37077, 37315, 61795, 111945, 185385, 319153, 957459, 1595765, 4787295, 5425601, 16276803, 27128005, 81384015]

約数ペア:

[(1, 81384015), (3, 27128005), (5, 16276803), (15, 5425601), (17, 4787295), (51, 1595765), (85, 957459), (255, 319153), (439, 185385), (727, 111945), (1317, 61795), (2181, 37315), (2195, 37077), (3635, 22389), (6585, 12359), (7463, 10905)]