131971217

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 159370176

約数和(自身を除く): 27398959

約数列:

[1, 7, 23, 157, 161, 227, 529, 1099, 1589, 3611, 3703, 5221, 25277, 35639, 36547, 83053, 120083, 249473, 581371, 819697, 840581, 5737879, 18853031, 131971217]

約数ペア:

[(1, 131971217), (7, 18853031), (23, 5737879), (157, 840581), (161, 819697), (227, 581371), (529, 249473), (1099, 120083), (1589, 83053), (3611, 36547), (3703, 35639), (5221, 25277)]