21697800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 71282640

約数和(自身を除く): 49584840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 29, 30, 40, 43, 50, 58, 60, 75, 86, 87, 100, 116, 120, 129, 145, 150, 172, 174, 200, 215, 232, 258, 290, 300, 344, 348, 430, 435, 516, 580, 600, 645, 696, 725, 841, 860, 870, 1032, 1075, 1160, 1247, 1290, 1450, 1682, 1720, 1740, 2150, 2175, 2494, 2523, 2580, 2900, 3225, 3364, 3480, 3741, 4205, 4300, 4350, 4988, 5046, 5160, 5800, 6235, 6450, 6728, 7482, 8410, 8600, 8700, 9976, 10092, 12470, 12615, 12900, 14964, 16820, 17400, 18705, 20184, 21025, 24940, 25230, 25800, 29928, 31175, 33640, 36163, 37410, 42050, 49880, 50460, 62350, 63075, 72326, 74820, 84100, 93525, 100920, 108489, 124700, 126150, 144652, 149640, 168200, 180815, 187050, 216978, 249400, 252300, 289304, 361630, 374100, 433956, 504600, 542445, 723260, 748200, 867912, 904075, 1084890, 1446520, 1808150, 2169780, 2712225, 3616300, 4339560, 5424450, 7232600, 10848900, 21697800]

約数ペア:

[(1, 21697800), (2, 10848900), (3, 7232600), (4, 5424450), (5, 4339560), (6, 3616300), (8, 2712225), (10, 2169780), (12, 1808150), (15, 1446520), (20, 1084890), (24, 904075), (25, 867912), (29, 748200), (30, 723260), (40, 542445), (43, 504600), (50, 433956), (58, 374100), (60, 361630), (75, 289304), (86, 252300), (87, 249400), (100, 216978), (116, 187050), (120, 180815), (129, 168200), (145, 149640), (150, 144652), (172, 126150), (174, 124700), (200, 108489), (215, 100920), (232, 93525), (258, 84100), (290, 74820), (300, 72326), (344, 63075), (348, 62350), (430, 50460), (435, 49880), (516, 42050), (580, 37410), (600, 36163), (645, 33640), (696, 31175), (725, 29928), (841, 25800), (860, 25230), (870, 24940), (1032, 21025), (1075, 20184), (1160, 18705), (1247, 17400), (1290, 16820), (1450, 14964), (1682, 12900), (1720, 12615), (1740, 12470), (2150, 10092), (2175, 9976), (2494, 8700), (2523, 8600), (2580, 8410), (2900, 7482), (3225, 6728), (3364, 6450), (3480, 6235), (3741, 5800), (4205, 5160), (4300, 5046), (4350, 4988)]