217848129

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 326975040

約数和(自身を除く): 109126911

約数列:

[1, 3, 19, 31, 41, 57, 93, 97, 123, 291, 589, 779, 961, 1271, 1767, 1843, 2337, 2883, 3007, 3813, 3977, 5529, 9021, 11931, 18259, 24149, 39401, 54777, 57133, 72447, 75563, 93217, 118203, 123287, 171399, 226689, 279651, 369861, 748619, 1771123, 2245857, 2342453, 3821897, 5313369, 7027359, 11465691, 72616043, 217848129]

約数ペア:

[(1, 217848129), (3, 72616043), (19, 11465691), (31, 7027359), (41, 5313369), (57, 3821897), (93, 2342453), (97, 2245857), (123, 1771123), (291, 748619), (589, 369861), (779, 279651), (961, 226689), (1271, 171399), (1767, 123287), (1843, 118203), (2337, 93217), (2883, 75563), (3007, 72447), (3813, 57133), (3977, 54777), (5529, 39401), (9021, 24149), (11931, 18259)]