68511891

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 117964800

約数和(自身を除く): 49452909

約数列:

[1, 3, 7, 19, 21, 29, 31, 57, 87, 93, 133, 191, 203, 217, 399, 551, 573, 589, 609, 651, 899, 1337, 1653, 1767, 2697, 3629, 3857, 4011, 4123, 5539, 5921, 6293, 10887, 11571, 12369, 16617, 17081, 17763, 18879, 25403, 38773, 41447, 51243, 76209, 105241, 112499, 116319, 119567, 124341, 171709, 315723, 337497, 358701, 515127, 736687, 787493, 1201963, 2210061, 2362479, 3262471, 3605889, 9787413, 22837297, 68511891]

約数ペア:

[(1, 68511891), (3, 22837297), (7, 9787413), (19, 3605889), (21, 3262471), (29, 2362479), (31, 2210061), (57, 1201963), (87, 787493), (93, 736687), (133, 515127), (191, 358701), (203, 337497), (217, 315723), (399, 171709), (551, 124341), (573, 119567), (589, 116319), (609, 112499), (651, 105241), (899, 76209), (1337, 51243), (1653, 41447), (1767, 38773), (2697, 25403), (3629, 18879), (3857, 17763), (4011, 17081), (4123, 16617), (5539, 12369), (5921, 11571), (6293, 10887)]