51213105

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 91737360

約数和(自身を除く): 40524255

約数列:

[1, 3, 5, 9, 15, 45, 53, 109, 159, 197, 265, 327, 477, 545, 591, 795, 981, 985, 1635, 1773, 2385, 2955, 4905, 5777, 8865, 10441, 17331, 21473, 28885, 31323, 51993, 52205, 64419, 86655, 93969, 107365, 156615, 193257, 259965, 322095, 469845, 966285, 1138069, 3414207, 5690345, 10242621, 17071035, 51213105]

約数ペア:

[(1, 51213105), (3, 17071035), (5, 10242621), (9, 5690345), (15, 3414207), (45, 1138069), (53, 966285), (109, 469845), (159, 322095), (197, 259965), (265, 193257), (327, 156615), (477, 107365), (545, 93969), (591, 86655), (795, 64419), (981, 52205), (985, 51993), (1635, 31323), (1773, 28885), (2385, 21473), (2955, 17331), (4905, 10441), (5777, 8865)]