21000949000

素因数分解:

$2^3\times 5^3\times {\mathrm{67}}^1\times {\mathrm{307}}^1\times {\mathrm{1021}}^1$

素因数の和:1416

約数の個数: 128

約数和(自身を含む): 50087157120

約数和(自身を除く): 29086208120

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 125, 134, 200, 250, 268, 307, 335, 500, 536, 614, 670, 1000, 1021, 1228, 1340, 1535, 1675, 2042, 2456, 2680, 3070, 3350, 4084, 5105, 6140, 6700, 7675, 8168, 8375, 10210, 12280, 13400, 15350, 16750, 20420, 20569, 25525, 30700, 33500, 38375, 40840, 41138, 51050, 61400, 67000, 68407, 76750, 82276, 102100, 102845, 127625, 136814, 153500, 164552, 204200, 205690, 255250, 273628, 307000, 313447, 342035, 411380, 510500, 514225, 547256, 626894, 684070, 822760, 1021000, 1028450, 1253788, 1368140, 1567235, 1710175, 2056900, 2507576, 2571125, 2736280, 3134470, 3420350, 4113800, 5142250, 6268940, 6840700, 7836175, 8550875, 10284500, 12537880, 13681400, 15672350, 17101750, 20569000, 21000949, 31344700, 34203500, 39180875, 42001898, 62689400, 68407000, 78361750, 84003796, 105004745, 156723500, 168007592, 210009490, 313447000, 420018980, 525023725, 840037960, 1050047450, 2100094900, 2625118625, 4200189800, 5250237250, 10500474500, 21000949000]

約数ペア:

[(1, 21000949000), (2, 10500474500), (4, 5250237250), (5, 4200189800), (8, 2625118625), (10, 2100094900), (20, 1050047450), (25, 840037960), (40, 525023725), (50, 420018980), (67, 313447000), (100, 210009490), (125, 168007592), (134, 156723500), (200, 105004745), (250, 84003796), (268, 78361750), (307, 68407000), (335, 62689400), (500, 42001898), (536, 39180875), (614, 34203500), (670, 31344700), (1000, 21000949), (1021, 20569000), (1228, 17101750), (1340, 15672350), (1535, 13681400), (1675, 12537880), (2042, 10284500), (2456, 8550875), (2680, 7836175), (3070, 6840700), (3350, 6268940), (4084, 5142250), (5105, 4113800), (6140, 3420350), (6700, 3134470), (7675, 2736280), (8168, 2571125), (8375, 2507576), (10210, 2056900), (12280, 1710175), (13400, 1567235), (15350, 1368140), (16750, 1253788), (20420, 1028450), (20569, 1021000), (25525, 822760), (30700, 684070), (33500, 626894), (38375, 547256), (40840, 514225), (41138, 510500), (51050, 411380), (61400, 342035), (67000, 313447), (68407, 307000), (76750, 273628), (82276, 255250), (102100, 205690), (102845, 204200), (127625, 164552), (136814, 153500)]