18881639

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1979}}^1$

素因数の和:2062

約数の個数: 16

約数和(自身を含む): 22809600

約数和(自身を除く): 3927961

約数列:

[1, 7, 29, 47, 203, 329, 1363, 1979, 9541, 13853, 57391, 93013, 401737, 651091, 2697377, 18881639]

約数ペア:

[(1, 18881639), (7, 2697377), (29, 651091), (47, 401737), (203, 93013), (329, 57391), (1363, 13853), (1979, 9541)]