211061487

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{10889}}^1$

素因数の和:10983

約数の個数: 32

約数和(自身を含む): 351267840

約数和(自身を除く): 140206353

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1491, 2769, 6461, 10889, 19383, 32667, 76223, 141557, 228669, 424671, 773119, 990899, 2319357, 2972697, 5411833, 10050547, 16235499, 30151641, 70353829, 211061487]

約数ペア:

[(1, 211061487), (3, 70353829), (7, 30151641), (13, 16235499), (21, 10050547), (39, 5411833), (71, 2972697), (91, 2319357), (213, 990899), (273, 773119), (497, 424671), (923, 228669), (1491, 141557), (2769, 76223), (6461, 32667), (10889, 19383)]