31780089

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 55396224

約数和(自身を除く): 23616135

約数列:

[1, 3, 9, 11, 17, 23, 33, 51, 69, 99, 153, 187, 207, 253, 391, 561, 759, 821, 1173, 1683, 2277, 2463, 3519, 4301, 7389, 9031, 12903, 13957, 18883, 27093, 38709, 41871, 56649, 81279, 125613, 153527, 169947, 207713, 321011, 460581, 623139, 963033, 1381743, 1869417, 2889099, 3531121, 10593363, 31780089]

約数ペア:

[(1, 31780089), (3, 10593363), (9, 3531121), (11, 2889099), (17, 1869417), (23, 1381743), (33, 963033), (51, 623139), (69, 460581), (99, 321011), (153, 207713), (187, 169947), (207, 153527), (253, 125613), (391, 81279), (561, 56649), (759, 41871), (821, 38709), (1173, 27093), (1683, 18883), (2277, 13957), (2463, 12903), (3519, 9031), (4301, 7389)]