206880561

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{379}}^1$

素因数の和:707

約数の個数: 40

約数和(自身を含む): 324434880

約数和(自身を除く): 117554319

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 293, 379, 621, 879, 1137, 1863, 2637, 3411, 6739, 7911, 8717, 10233, 20217, 23733, 26151, 30699, 60651, 78453, 111047, 181953, 235359, 333141, 545859, 706077, 999423, 2554081, 2998269, 7662243, 8994807, 22986729, 68960187, 206880561]

約数ペア:

[(1, 206880561), (3, 68960187), (9, 22986729), (23, 8994807), (27, 7662243), (69, 2998269), (81, 2554081), (207, 999423), (293, 706077), (379, 545859), (621, 333141), (879, 235359), (1137, 181953), (1863, 111047), (2637, 78453), (3411, 60651), (6739, 30699), (7911, 26151), (8717, 23733), (10233, 20217)]