21831120

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{1123}}^1$

素因数の和:1151

約数の個数: 120

約数和(自身を含む): 76099296

約数和(自身を除く): 54268176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1123, 1215, 1296, 1620, 1944, 2160, 2246, 2430, 3240, 3369, 3888, 4492, 4860, 5615, 6480, 6738, 8984, 9720, 10107, 11230, 13476, 16845, 17968, 19440, 20214, 22460, 26952, 30321, 33690, 40428, 44920, 50535, 53904, 60642, 67380, 80856, 89840, 90963, 101070, 121284, 134760, 151605, 161712, 181926, 202140, 242568, 269520, 272889, 303210, 363852, 404280, 454815, 485136, 545778, 606420, 727704, 808560, 909630, 1091556, 1212840, 1364445, 1455408, 1819260, 2183112, 2425680, 2728890, 3638520, 4366224, 5457780, 7277040, 10915560, 21831120]

約数ペア:

[(1, 21831120), (2, 10915560), (3, 7277040), (4, 5457780), (5, 4366224), (6, 3638520), (8, 2728890), (9, 2425680), (10, 2183112), (12, 1819260), (15, 1455408), (16, 1364445), (18, 1212840), (20, 1091556), (24, 909630), (27, 808560), (30, 727704), (36, 606420), (40, 545778), (45, 485136), (48, 454815), (54, 404280), (60, 363852), (72, 303210), (80, 272889), (81, 269520), (90, 242568), (108, 202140), (120, 181926), (135, 161712), (144, 151605), (162, 134760), (180, 121284), (216, 101070), (240, 90963), (243, 89840), (270, 80856), (324, 67380), (360, 60642), (405, 53904), (432, 50535), (486, 44920), (540, 40428), (648, 33690), (720, 30321), (810, 26952), (972, 22460), (1080, 20214), (1123, 19440), (1215, 17968), (1296, 16845), (1620, 13476), (1944, 11230), (2160, 10107), (2246, 9720), (2430, 8984), (3240, 6738), (3369, 6480), (3888, 5615), (4492, 4860)]