21034440

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:532

約数の個数: 192

約数和(自身を含む): 82892160

約数和(自身を除く): 61857720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 51, 56, 60, 63, 68, 70, 72, 84, 85, 90, 102, 105, 119, 120, 126, 136, 140, 153, 168, 170, 180, 204, 210, 238, 252, 255, 280, 306, 315, 340, 357, 360, 408, 420, 476, 491, 504, 510, 595, 612, 630, 680, 714, 765, 840, 952, 982, 1020, 1071, 1190, 1224, 1260, 1428, 1473, 1530, 1785, 1964, 2040, 2142, 2380, 2455, 2520, 2856, 2946, 3060, 3437, 3570, 3928, 4284, 4419, 4760, 4910, 5355, 5892, 6120, 6874, 7140, 7365, 8347, 8568, 8838, 9820, 10311, 10710, 11784, 13748, 14280, 14730, 16694, 17185, 17676, 19640, 20622, 21420, 22095, 25041, 27496, 29460, 30933, 33388, 34370, 35352, 41244, 41735, 42840, 44190, 50082, 51555, 58429, 58920, 61866, 66776, 68740, 75123, 82488, 83470, 88380, 100164, 103110, 116858, 123732, 125205, 137480, 150246, 154665, 166940, 175287, 176760, 200328, 206220, 233716, 247464, 250410, 292145, 300492, 309330, 333880, 350574, 375615, 412440, 467432, 500820, 525861, 584290, 600984, 618660, 701148, 751230, 876435, 1001640, 1051722, 1168580, 1237320, 1402296, 1502460, 1752870, 2103444, 2337160, 2629305, 3004920, 3505740, 4206888, 5258610, 7011480, 10517220, 21034440]

約数ペア:

[(1, 21034440), (2, 10517220), (3, 7011480), (4, 5258610), (5, 4206888), (6, 3505740), (7, 3004920), (8, 2629305), (9, 2337160), (10, 2103444), (12, 1752870), (14, 1502460), (15, 1402296), (17, 1237320), (18, 1168580), (20, 1051722), (21, 1001640), (24, 876435), (28, 751230), (30, 701148), (34, 618660), (35, 600984), (36, 584290), (40, 525861), (42, 500820), (45, 467432), (51, 412440), (56, 375615), (60, 350574), (63, 333880), (68, 309330), (70, 300492), (72, 292145), (84, 250410), (85, 247464), (90, 233716), (102, 206220), (105, 200328), (119, 176760), (120, 175287), (126, 166940), (136, 154665), (140, 150246), (153, 137480), (168, 125205), (170, 123732), (180, 116858), (204, 103110), (210, 100164), (238, 88380), (252, 83470), (255, 82488), (280, 75123), (306, 68740), (315, 66776), (340, 61866), (357, 58920), (360, 58429), (408, 51555), (420, 50082), (476, 44190), (491, 42840), (504, 41735), (510, 41244), (595, 35352), (612, 34370), (630, 33388), (680, 30933), (714, 29460), (765, 27496), (840, 25041), (952, 22095), (982, 21420), (1020, 20622), (1071, 19640), (1190, 17676), (1224, 17185), (1260, 16694), (1428, 14730), (1473, 14280), (1530, 13748), (1785, 11784), (1964, 10710), (2040, 10311), (2142, 9820), (2380, 8838), (2455, 8568), (2520, 8347), (2856, 7365), (2946, 7140), (3060, 6874), (3437, 6120), (3570, 5892), (3928, 5355), (4284, 4910), (4419, 4760)]