16961971

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 32

約数和(自身を含む): 20901888

約数和(自身を除く): 3939917

約数列:

[1, 13, 17, 23, 47, 71, 221, 299, 391, 611, 799, 923, 1081, 1207, 1633, 3337, 5083, 10387, 14053, 15691, 18377, 21229, 27761, 43381, 56729, 76751, 238901, 360893, 737477, 997763, 1304767, 16961971]

約数ペア:

[(1, 16961971), (13, 1304767), (17, 997763), (23, 737477), (47, 360893), (71, 238901), (221, 76751), (299, 56729), (391, 43381), (611, 27761), (799, 21229), (923, 18377), (1081, 15691), (1207, 14053), (1633, 10387), (3337, 5083)]