21043260

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:337

約数の個数: 192

約数和(自身を含む): 79027200

約数和(自身を除く): 57983940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 293, 315, 342, 378, 380, 399, 420, 513, 532, 540, 570, 586, 630, 665, 684, 756, 798, 855, 879, 945, 1026, 1140, 1172, 1197, 1260, 1330, 1465, 1596, 1710, 1758, 1890, 1995, 2051, 2052, 2394, 2565, 2637, 2660, 2930, 3420, 3516, 3591, 3780, 3990, 4102, 4395, 4788, 5130, 5274, 5567, 5860, 5985, 6153, 7182, 7911, 7980, 8204, 8790, 10255, 10260, 10548, 11134, 11970, 12306, 13185, 14364, 15822, 16701, 17580, 17955, 18459, 20510, 22268, 23940, 24612, 26370, 27835, 30765, 31644, 33402, 35910, 36918, 38969, 39555, 41020, 50103, 52740, 55377, 55670, 61530, 66804, 71820, 73836, 77938, 79110, 83505, 92295, 100206, 110754, 111340, 116907, 123060, 150309, 155876, 158220, 167010, 184590, 194845, 200412, 221508, 233814, 250515, 276885, 300618, 334020, 350721, 369180, 389690, 467628, 501030, 553770, 584535, 601236, 701442, 751545, 779380, 1002060, 1052163, 1107540, 1169070, 1402884, 1503090, 1753605, 2104326, 2338140, 3006180, 3507210, 4208652, 5260815, 7014420, 10521630, 21043260]

約数ペア:

[(1, 21043260), (2, 10521630), (3, 7014420), (4, 5260815), (5, 4208652), (6, 3507210), (7, 3006180), (9, 2338140), (10, 2104326), (12, 1753605), (14, 1503090), (15, 1402884), (18, 1169070), (19, 1107540), (20, 1052163), (21, 1002060), (27, 779380), (28, 751545), (30, 701442), (35, 601236), (36, 584535), (38, 553770), (42, 501030), (45, 467628), (54, 389690), (57, 369180), (60, 350721), (63, 334020), (70, 300618), (76, 276885), (84, 250515), (90, 233814), (95, 221508), (105, 200412), (108, 194845), (114, 184590), (126, 167010), (133, 158220), (135, 155876), (140, 150309), (171, 123060), (180, 116907), (189, 111340), (190, 110754), (210, 100206), (228, 92295), (252, 83505), (266, 79110), (270, 77938), (285, 73836), (293, 71820), (315, 66804), (342, 61530), (378, 55670), (380, 55377), (399, 52740), (420, 50103), (513, 41020), (532, 39555), (540, 38969), (570, 36918), (586, 35910), (630, 33402), (665, 31644), (684, 30765), (756, 27835), (798, 26370), (855, 24612), (879, 23940), (945, 22268), (1026, 20510), (1140, 18459), (1172, 17955), (1197, 17580), (1260, 16701), (1330, 15822), (1465, 14364), (1596, 13185), (1710, 12306), (1758, 11970), (1890, 11134), (1995, 10548), (2051, 10260), (2052, 10255), (2394, 8790), (2565, 8204), (2637, 7980), (2660, 7911), (2930, 7182), (3420, 6153), (3516, 5985), (3591, 5860), (3780, 5567), (3990, 5274), (4102, 5130), (4395, 4788)]