21493500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:141

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 53985540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 25, 28, 30, 35, 42, 46, 50, 60, 69, 70, 75, 84, 89, 92, 100, 105, 115, 125, 138, 140, 150, 161, 175, 178, 210, 230, 250, 267, 276, 300, 322, 345, 350, 356, 375, 420, 445, 460, 483, 500, 525, 534, 575, 623, 644, 690, 700, 750, 805, 875, 890, 966, 1050, 1068, 1150, 1246, 1335, 1380, 1500, 1610, 1725, 1750, 1780, 1869, 1932, 2047, 2100, 2225, 2300, 2415, 2492, 2625, 2670, 2875, 3115, 3220, 3450, 3500, 3738, 4025, 4094, 4450, 4830, 5250, 5340, 5750, 6141, 6230, 6675, 6900, 7476, 8050, 8188, 8625, 8900, 9345, 9660, 10235, 10500, 11125, 11500, 12075, 12282, 12460, 13350, 14329, 15575, 16100, 17250, 18690, 20125, 20470, 22250, 24150, 24564, 26700, 28658, 30705, 31150, 33375, 34500, 37380, 40250, 40940, 42987, 44500, 46725, 48300, 51175, 57316, 60375, 61410, 62300, 66750, 71645, 77875, 80500, 85974, 93450, 102350, 120750, 122820, 133500, 143290, 153525, 155750, 171948, 186900, 204700, 214935, 233625, 241500, 255875, 286580, 307050, 311500, 358225, 429870, 467250, 511750, 614100, 716450, 767625, 859740, 934500, 1023500, 1074675, 1432900, 1535250, 1791125, 2149350, 3070500, 3582250, 4298700, 5373375, 7164500, 10746750, 21493500]

約数ペア:

[(1, 21493500), (2, 10746750), (3, 7164500), (4, 5373375), (5, 4298700), (6, 3582250), (7, 3070500), (10, 2149350), (12, 1791125), (14, 1535250), (15, 1432900), (20, 1074675), (21, 1023500), (23, 934500), (25, 859740), (28, 767625), (30, 716450), (35, 614100), (42, 511750), (46, 467250), (50, 429870), (60, 358225), (69, 311500), (70, 307050), (75, 286580), (84, 255875), (89, 241500), (92, 233625), (100, 214935), (105, 204700), (115, 186900), (125, 171948), (138, 155750), (140, 153525), (150, 143290), (161, 133500), (175, 122820), (178, 120750), (210, 102350), (230, 93450), (250, 85974), (267, 80500), (276, 77875), (300, 71645), (322, 66750), (345, 62300), (350, 61410), (356, 60375), (375, 57316), (420, 51175), (445, 48300), (460, 46725), (483, 44500), (500, 42987), (525, 40940), (534, 40250), (575, 37380), (623, 34500), (644, 33375), (690, 31150), (700, 30705), (750, 28658), (805, 26700), (875, 24564), (890, 24150), (966, 22250), (1050, 20470), (1068, 20125), (1150, 18690), (1246, 17250), (1335, 16100), (1380, 15575), (1500, 14329), (1610, 13350), (1725, 12460), (1750, 12282), (1780, 12075), (1869, 11500), (1932, 11125), (2047, 10500), (2100, 10235), (2225, 9660), (2300, 9345), (2415, 8900), (2492, 8625), (2625, 8188), (2670, 8050), (2875, 7476), (3115, 6900), (3220, 6675), (3450, 6230), (3500, 6141), (3738, 5750), (4025, 5340), (4094, 5250), (4450, 4830)]