205651649

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 255467520

約数和(自身を除く): 49815871

約数列:

[1, 7, 19, 47, 133, 167, 197, 329, 893, 1169, 1379, 3173, 3743, 6251, 7849, 9259, 22211, 26201, 32899, 54943, 64813, 149131, 175921, 230293, 625081, 1043917, 1231447, 1546253, 4375567, 10823771, 29378807, 205651649]

約数ペア:

[(1, 205651649), (7, 29378807), (19, 10823771), (47, 4375567), (133, 1546253), (167, 1231447), (197, 1043917), (329, 625081), (893, 230293), (1169, 175921), (1379, 149131), (3173, 64813), (3743, 54943), (6251, 32899), (7849, 26201), (9259, 22211)]