19840005

素因数分解:

$3^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{523}}^1$

素因数の和:818

約数の個数: 32

約数和(自身を含む): 35464320

約数和(自身を除く): 15624315

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 281, 523, 843, 1405, 1569, 2529, 2615, 4215, 4707, 7587, 7845, 12645, 14121, 23535, 37935, 70605, 146963, 440889, 734815, 1322667, 2204445, 3968001, 6613335, 19840005]

約数ペア:

[(1, 19840005), (3, 6613335), (5, 3968001), (9, 2204445), (15, 1322667), (27, 734815), (45, 440889), (135, 146963), (281, 70605), (523, 37935), (843, 23535), (1405, 14121), (1569, 12645), (2529, 7845), (2615, 7587), (4215, 4707)]