21554280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5443}}^1$

素因数の和:5471

約数の個数: 96

約数和(自身を含む): 76433760

約数和(自身を除く): 54879480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5443, 10886, 16329, 21772, 27215, 32658, 43544, 48987, 54430, 59873, 65316, 81645, 97974, 108860, 119746, 130632, 163290, 179619, 195948, 217720, 239492, 244935, 299365, 326580, 359238, 391896, 478984, 489870, 538857, 598730, 653160, 718476, 898095, 979740, 1077714, 1197460, 1436952, 1796190, 1959480, 2155428, 2394920, 2694285, 3592380, 4310856, 5388570, 7184760, 10777140, 21554280]

約数ペア:

[(1, 21554280), (2, 10777140), (3, 7184760), (4, 5388570), (5, 4310856), (6, 3592380), (8, 2694285), (9, 2394920), (10, 2155428), (11, 1959480), (12, 1796190), (15, 1436952), (18, 1197460), (20, 1077714), (22, 979740), (24, 898095), (30, 718476), (33, 653160), (36, 598730), (40, 538857), (44, 489870), (45, 478984), (55, 391896), (60, 359238), (66, 326580), (72, 299365), (88, 244935), (90, 239492), (99, 217720), (110, 195948), (120, 179619), (132, 163290), (165, 130632), (180, 119746), (198, 108860), (220, 97974), (264, 81645), (330, 65316), (360, 59873), (396, 54430), (440, 48987), (495, 43544), (660, 32658), (792, 27215), (990, 21772), (1320, 16329), (1980, 10886), (3960, 5443)]