201638997

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^2\times {\mathrm{577}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 350129280

約数和(自身を除く): 148490283

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 577, 903, 1161, 1731, 1849, 2709, 4039, 5193, 5547, 8127, 12117, 12943, 15579, 16641, 24811, 36351, 38829, 49923, 74433, 109053, 116487, 173677, 223299, 349461, 521031, 669897, 1066873, 1563093, 3200619, 4689279, 7468111, 9601857, 22404333, 28805571, 67212999, 201638997]

約数ペア:

[(1, 201638997), (3, 67212999), (7, 28805571), (9, 22404333), (21, 9601857), (27, 7468111), (43, 4689279), (63, 3200619), (129, 1563093), (189, 1066873), (301, 669897), (387, 521031), (577, 349461), (903, 223299), (1161, 173677), (1731, 116487), (1849, 109053), (2709, 74433), (4039, 49923), (5193, 38829), (5547, 36351), (8127, 24811), (12117, 16641), (12943, 15579)]