81008829

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:172

約数の個数: 80

約数和(自身を含む): 142179840

約数和(自身を除く): 61171011

約数列:

[1, 3, 9, 11, 23, 27, 33, 59, 67, 69, 81, 99, 177, 201, 207, 253, 297, 531, 603, 621, 649, 737, 759, 891, 1357, 1541, 1593, 1809, 1863, 1947, 2211, 2277, 3953, 4071, 4623, 4779, 5427, 5841, 6633, 6831, 11859, 12213, 13869, 14927, 16951, 17523, 19899, 20493, 35577, 36639, 41607, 43483, 44781, 50853, 52569, 59697, 90919, 106731, 109917, 124821, 130449, 134343, 152559, 272757, 320193, 391347, 403029, 457677, 818271, 1000109, 1174041, 1209087, 1373031, 2454813, 3000327, 3522123, 7364439, 9000981, 27002943, 81008829]

約数ペア:

[(1, 81008829), (3, 27002943), (9, 9000981), (11, 7364439), (23, 3522123), (27, 3000327), (33, 2454813), (59, 1373031), (67, 1209087), (69, 1174041), (81, 1000109), (99, 818271), (177, 457677), (201, 403029), (207, 391347), (253, 320193), (297, 272757), (531, 152559), (603, 134343), (621, 130449), (649, 124821), (737, 109917), (759, 106731), (891, 90919), (1357, 59697), (1541, 52569), (1593, 50853), (1809, 44781), (1863, 43483), (1947, 41607), (2211, 36639), (2277, 35577), (3953, 20493), (4071, 19899), (4623, 17523), (4779, 16951), (5427, 14927), (5841, 13869), (6633, 12213), (6831, 11859)]