17956729

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 22982400

約数和(自身を除く): 5025671

約数列:

[1, 7, 19, 37, 41, 89, 133, 259, 287, 623, 703, 779, 1517, 1691, 3293, 3649, 4921, 5453, 10619, 11837, 23051, 25543, 28823, 62567, 69331, 135013, 201761, 437969, 485317, 945091, 2565247, 17956729]

約数ペア:

[(1, 17956729), (7, 2565247), (19, 945091), (37, 485317), (41, 437969), (89, 201761), (133, 135013), (259, 69331), (287, 62567), (623, 28823), (703, 25543), (779, 23051), (1517, 11837), (1691, 10619), (3293, 5453), (3649, 4921)]