81422019

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 138378240

約数和(自身を除く): 56956221

約数列:

[1, 3, 7, 9, 21, 63, 71, 109, 167, 213, 327, 497, 501, 639, 763, 981, 1169, 1491, 1503, 2289, 3507, 4473, 6867, 7739, 10521, 11857, 18203, 23217, 35571, 54173, 54609, 69651, 82999, 106713, 127421, 162519, 163827, 248997, 382263, 487557, 746991, 1146789, 1292413, 3877239, 9046891, 11631717, 27140673, 81422019]

約数ペア:

[(1, 81422019), (3, 27140673), (7, 11631717), (9, 9046891), (21, 3877239), (63, 1292413), (71, 1146789), (109, 746991), (167, 487557), (213, 382263), (327, 248997), (497, 163827), (501, 162519), (639, 127421), (763, 106713), (981, 82999), (1169, 69651), (1491, 54609), (1503, 54173), (2289, 35571), (3507, 23217), (4473, 18203), (6867, 11857), (7739, 10521)]