388505079

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 591666768

約数和(自身を除く): 203161689

約数列:

[1, 3, 9, 27, 81, 97, 197, 251, 291, 591, 753, 873, 1773, 2259, 2619, 5319, 6777, 7857, 15957, 19109, 20331, 24347, 49447, 57327, 73041, 148341, 171981, 219123, 445023, 515943, 657369, 1335069, 1547829, 1972107, 4005207, 4796359, 14389077, 43167231, 129501693, 388505079]

約数ペア:

[(1, 388505079), (3, 129501693), (9, 43167231), (27, 14389077), (81, 4796359), (97, 4005207), (197, 1972107), (251, 1547829), (291, 1335069), (591, 657369), (753, 515943), (873, 445023), (1773, 219123), (2259, 171981), (2619, 148341), (5319, 73041), (6777, 57327), (7857, 49447), (15957, 24347), (19109, 20331)]