21334560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 144

約数和(自身を含む): 73047744

約数和(自身を除く): 51713184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 208, 240, 260, 263, 312, 338, 390, 416, 480, 507, 520, 526, 624, 676, 780, 789, 845, 1014, 1040, 1052, 1248, 1315, 1352, 1560, 1578, 1690, 2028, 2080, 2104, 2535, 2630, 2704, 3120, 3156, 3380, 3419, 3945, 4056, 4208, 5070, 5260, 5408, 6240, 6312, 6760, 6838, 7890, 8112, 8416, 10140, 10257, 10520, 12624, 13520, 13676, 15780, 16224, 17095, 20280, 20514, 21040, 25248, 27040, 27352, 31560, 34190, 40560, 41028, 42080, 44447, 51285, 54704, 63120, 68380, 81120, 82056, 88894, 102570, 109408, 126240, 133341, 136760, 164112, 177788, 205140, 222235, 266682, 273520, 328224, 355576, 410280, 444470, 533364, 547040, 666705, 711152, 820560, 888940, 1066728, 1333410, 1422304, 1641120, 1777880, 2133456, 2666820, 3555760, 4266912, 5333640, 7111520, 10667280, 21334560]

約数ペア:

[(1, 21334560), (2, 10667280), (3, 7111520), (4, 5333640), (5, 4266912), (6, 3555760), (8, 2666820), (10, 2133456), (12, 1777880), (13, 1641120), (15, 1422304), (16, 1333410), (20, 1066728), (24, 888940), (26, 820560), (30, 711152), (32, 666705), (39, 547040), (40, 533364), (48, 444470), (52, 410280), (60, 355576), (65, 328224), (78, 273520), (80, 266682), (96, 222235), (104, 205140), (120, 177788), (130, 164112), (156, 136760), (160, 133341), (169, 126240), (195, 109408), (208, 102570), (240, 88894), (260, 82056), (263, 81120), (312, 68380), (338, 63120), (390, 54704), (416, 51285), (480, 44447), (507, 42080), (520, 41028), (526, 40560), (624, 34190), (676, 31560), (780, 27352), (789, 27040), (845, 25248), (1014, 21040), (1040, 20514), (1052, 20280), (1248, 17095), (1315, 16224), (1352, 15780), (1560, 13676), (1578, 13520), (1690, 12624), (2028, 10520), (2080, 10257), (2104, 10140), (2535, 8416), (2630, 8112), (2704, 7890), (3120, 6838), (3156, 6760), (3380, 6312), (3419, 6240), (3945, 5408), (4056, 5260), (4208, 5070)]