28477737

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20681}}^1$

素因数の和:20710

約数の個数: 20

約数和(自身を含む): 45045396

約数和(自身を除く): 16567659

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20681, 62043, 186129, 351577, 558387, 1054731, 1675161, 3164193, 9492579, 28477737]

約数ペア:

[(1, 28477737), (3, 9492579), (9, 3164193), (17, 1675161), (27, 1054731), (51, 558387), (81, 351577), (153, 186129), (459, 62043), (1377, 20681)]