21083760

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:292

約数の個数: 160

約数和(自身を含む): 74638080

約数和(自身を除く): 53554320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 43, 45, 48, 54, 60, 72, 80, 86, 90, 108, 120, 129, 135, 144, 172, 180, 215, 216, 227, 240, 258, 270, 344, 360, 387, 430, 432, 454, 516, 540, 645, 681, 688, 720, 774, 860, 908, 1032, 1080, 1135, 1161, 1290, 1362, 1548, 1720, 1816, 1935, 2043, 2064, 2160, 2270, 2322, 2580, 2724, 3096, 3405, 3440, 3632, 3870, 4086, 4540, 4644, 5160, 5448, 5805, 6129, 6192, 6810, 7740, 8172, 9080, 9288, 9761, 10215, 10320, 10896, 11610, 12258, 13620, 15480, 16344, 18160, 18576, 19522, 20430, 23220, 24516, 27240, 29283, 30645, 30960, 32688, 39044, 40860, 46440, 48805, 49032, 54480, 58566, 61290, 78088, 81720, 87849, 92880, 97610, 98064, 117132, 122580, 146415, 156176, 163440, 175698, 195220, 234264, 245160, 263547, 292830, 351396, 390440, 439245, 468528, 490320, 527094, 585660, 702792, 780880, 878490, 1054188, 1171320, 1317735, 1405584, 1756980, 2108376, 2342640, 2635470, 3513960, 4216752, 5270940, 7027920, 10541880, 21083760]

約数ペア:

[(1, 21083760), (2, 10541880), (3, 7027920), (4, 5270940), (5, 4216752), (6, 3513960), (8, 2635470), (9, 2342640), (10, 2108376), (12, 1756980), (15, 1405584), (16, 1317735), (18, 1171320), (20, 1054188), (24, 878490), (27, 780880), (30, 702792), (36, 585660), (40, 527094), (43, 490320), (45, 468528), (48, 439245), (54, 390440), (60, 351396), (72, 292830), (80, 263547), (86, 245160), (90, 234264), (108, 195220), (120, 175698), (129, 163440), (135, 156176), (144, 146415), (172, 122580), (180, 117132), (215, 98064), (216, 97610), (227, 92880), (240, 87849), (258, 81720), (270, 78088), (344, 61290), (360, 58566), (387, 54480), (430, 49032), (432, 48805), (454, 46440), (516, 40860), (540, 39044), (645, 32688), (681, 30960), (688, 30645), (720, 29283), (774, 27240), (860, 24516), (908, 23220), (1032, 20430), (1080, 19522), (1135, 18576), (1161, 18160), (1290, 16344), (1362, 15480), (1548, 13620), (1720, 12258), (1816, 11610), (1935, 10896), (2043, 10320), (2064, 10215), (2160, 9761), (2270, 9288), (2322, 9080), (2580, 8172), (2724, 7740), (3096, 6810), (3405, 6192), (3440, 6129), (3632, 5805), (3870, 5448), (4086, 5160), (4540, 4644)]