278193237

素因数分解:

$3^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{5101}}^1$

素因数の和:5178

約数の個数: 32

約数和(自身を含む): 440812800

約数和(自身を除く): 162619563

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 343, 371, 1029, 1113, 2597, 5101, 7791, 15303, 18179, 35707, 54537, 107121, 249949, 270353, 749847, 811059, 1749643, 1892471, 5248929, 5677413, 13247297, 39741891, 92731079, 278193237]

約数ペア:

[(1, 278193237), (3, 92731079), (7, 39741891), (21, 13247297), (49, 5677413), (53, 5248929), (147, 1892471), (159, 1749643), (343, 811059), (371, 749847), (1029, 270353), (1113, 249949), (2597, 107121), (5101, 54537), (7791, 35707), (15303, 18179)]