21571650

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2$

素因数の和:98

約数の個数: 144

約数和(自身を含む): 64802400

約数和(自身を除く): 43230750

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 27, 29, 30, 38, 45, 50, 54, 57, 58, 75, 87, 90, 95, 114, 135, 145, 150, 171, 174, 190, 225, 261, 270, 285, 290, 342, 435, 450, 475, 513, 522, 551, 570, 675, 725, 783, 841, 855, 870, 950, 1026, 1102, 1305, 1350, 1425, 1450, 1566, 1653, 1682, 1710, 2175, 2523, 2565, 2610, 2755, 2850, 3306, 3915, 4205, 4275, 4350, 4959, 5046, 5130, 5510, 6525, 7569, 7830, 8265, 8410, 8550, 9918, 12615, 12825, 13050, 13775, 14877, 15138, 15979, 16530, 19575, 21025, 22707, 24795, 25230, 25650, 27550, 29754, 31958, 37845, 39150, 41325, 42050, 45414, 47937, 49590, 63075, 74385, 75690, 79895, 82650, 95874, 113535, 123975, 126150, 143811, 148770, 159790, 189225, 227070, 239685, 247950, 287622, 371925, 378450, 399475, 431433, 479370, 567675, 719055, 743850, 798950, 862866, 1135350, 1198425, 1438110, 2157165, 2396850, 3595275, 4314330, 7190550, 10785825, 21571650]

約数ペア:

[(1, 21571650), (2, 10785825), (3, 7190550), (5, 4314330), (6, 3595275), (9, 2396850), (10, 2157165), (15, 1438110), (18, 1198425), (19, 1135350), (25, 862866), (27, 798950), (29, 743850), (30, 719055), (38, 567675), (45, 479370), (50, 431433), (54, 399475), (57, 378450), (58, 371925), (75, 287622), (87, 247950), (90, 239685), (95, 227070), (114, 189225), (135, 159790), (145, 148770), (150, 143811), (171, 126150), (174, 123975), (190, 113535), (225, 95874), (261, 82650), (270, 79895), (285, 75690), (290, 74385), (342, 63075), (435, 49590), (450, 47937), (475, 45414), (513, 42050), (522, 41325), (551, 39150), (570, 37845), (675, 31958), (725, 29754), (783, 27550), (841, 25650), (855, 25230), (870, 24795), (950, 22707), (1026, 21025), (1102, 19575), (1305, 16530), (1350, 15979), (1425, 15138), (1450, 14877), (1566, 13775), (1653, 13050), (1682, 12825), (1710, 12615), (2175, 9918), (2523, 8550), (2565, 8410), (2610, 8265), (2755, 7830), (2850, 7569), (3306, 6525), (3915, 5510), (4205, 5130), (4275, 5046), (4350, 4959)]