197985843

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 333849600

約数和(自身を除く): 135863757

約数列:

[1, 3, 9, 11, 27, 33, 41, 71, 99, 123, 213, 229, 297, 369, 451, 639, 687, 781, 1107, 1353, 1917, 2061, 2343, 2519, 2911, 4059, 6183, 7029, 7557, 8733, 9389, 12177, 16259, 21087, 22671, 26199, 28167, 32021, 48777, 68013, 78597, 84501, 96063, 103279, 146331, 178849, 253503, 288189, 309837, 438993, 536547, 666619, 864567, 929511, 1609641, 1999857, 2788533, 4828923, 5999571, 7332809, 17998713, 21998427, 65995281, 197985843]

約数ペア:

[(1, 197985843), (3, 65995281), (9, 21998427), (11, 17998713), (27, 7332809), (33, 5999571), (41, 4828923), (71, 2788533), (99, 1999857), (123, 1609641), (213, 929511), (229, 864567), (297, 666619), (369, 536547), (451, 438993), (639, 309837), (687, 288189), (781, 253503), (1107, 178849), (1353, 146331), (1917, 103279), (2061, 96063), (2343, 84501), (2519, 78597), (2911, 68013), (4059, 48777), (6183, 32021), (7029, 28167), (7557, 26199), (8733, 22671), (9389, 21087), (12177, 16259)]