31611307

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 41932800

約数和(自身を除く): 10321493

約数列:

[1, 7, 13, 19, 47, 91, 133, 247, 329, 389, 611, 893, 1729, 2723, 4277, 5057, 6251, 7391, 11609, 18283, 35399, 51737, 81263, 96083, 127981, 237679, 347377, 672581, 1663753, 2431639, 4515901, 31611307]

約数ペア:

[(1, 31611307), (7, 4515901), (13, 2431639), (19, 1663753), (47, 672581), (91, 347377), (133, 237679), (247, 127981), (329, 96083), (389, 81263), (611, 51737), (893, 35399), (1729, 18283), (2723, 11609), (4277, 7391), (5057, 6251)]