131433141

素因数分解:

$3^1\times 7^4\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:359

約数の個数: 40

約数和(自身を含む): 208125504

約数和(自身を除く): 76692363

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 257, 343, 497, 771, 1029, 1491, 1799, 2401, 3479, 5397, 7203, 10437, 12593, 18247, 24353, 37779, 54741, 73059, 88151, 127729, 170471, 264453, 383187, 511413, 617057, 894103, 1851171, 2682309, 6258721, 18776163, 43811047, 131433141]

約数ペア:

[(1, 131433141), (3, 43811047), (7, 18776163), (21, 6258721), (49, 2682309), (71, 1851171), (147, 894103), (213, 617057), (257, 511413), (343, 383187), (497, 264453), (771, 170471), (1029, 127729), (1491, 88151), (1799, 73059), (2401, 54741), (3479, 37779), (5397, 24353), (7203, 18247), (10437, 12593)]