28991479

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 33707520

約数和(自身を除く): 4716041

約数列:

[1, 11, 31, 59, 121, 131, 341, 649, 1441, 1829, 3751, 4061, 7139, 7729, 15851, 20119, 44671, 85019, 221309, 239599, 491381, 935209, 2635589, 28991479]

約数ペア:

[(1, 28991479), (11, 2635589), (31, 935209), (59, 491381), (121, 239599), (131, 221309), (341, 85019), (649, 44671), (1441, 20119), (1829, 15851), (3751, 7729), (4061, 7139)]