313191

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:135

約数の個数: 24

約数和(自身を含む): 505440

約数和(自身を除く): 192249

約数列:

[1, 3, 9, 17, 23, 51, 69, 89, 153, 207, 267, 391, 801, 1173, 1513, 2047, 3519, 4539, 6141, 13617, 18423, 34799, 104397, 313191]

約数ペア:

[(1, 313191), (3, 104397), (9, 34799), (17, 18423), (23, 13617), (51, 6141), (69, 4539), (89, 3519), (153, 2047), (207, 1513), (267, 1173), (391, 801)]