21459480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:513

約数の個数: 128

約数和(自身を含む): 74995200

約数和(自身を除く): 53535720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 59, 60, 70, 84, 105, 118, 120, 140, 168, 177, 210, 236, 280, 295, 354, 413, 420, 433, 472, 590, 708, 826, 840, 866, 885, 1180, 1239, 1299, 1416, 1652, 1732, 1770, 2065, 2165, 2360, 2478, 2598, 3031, 3304, 3464, 3540, 4130, 4330, 4956, 5196, 6062, 6195, 6495, 7080, 8260, 8660, 9093, 9912, 10392, 12124, 12390, 12990, 15155, 16520, 17320, 18186, 24248, 24780, 25547, 25980, 30310, 36372, 45465, 49560, 51094, 51960, 60620, 72744, 76641, 90930, 102188, 121240, 127735, 153282, 178829, 181860, 204376, 255470, 306564, 357658, 363720, 383205, 510940, 536487, 613128, 715316, 766410, 894145, 1021880, 1072974, 1430632, 1532820, 1788290, 2145948, 2682435, 3065640, 3576580, 4291896, 5364870, 7153160, 10729740, 21459480]

約数ペア:

[(1, 21459480), (2, 10729740), (3, 7153160), (4, 5364870), (5, 4291896), (6, 3576580), (7, 3065640), (8, 2682435), (10, 2145948), (12, 1788290), (14, 1532820), (15, 1430632), (20, 1072974), (21, 1021880), (24, 894145), (28, 766410), (30, 715316), (35, 613128), (40, 536487), (42, 510940), (56, 383205), (59, 363720), (60, 357658), (70, 306564), (84, 255470), (105, 204376), (118, 181860), (120, 178829), (140, 153282), (168, 127735), (177, 121240), (210, 102188), (236, 90930), (280, 76641), (295, 72744), (354, 60620), (413, 51960), (420, 51094), (433, 49560), (472, 45465), (590, 36372), (708, 30310), (826, 25980), (840, 25547), (866, 24780), (885, 24248), (1180, 18186), (1239, 17320), (1299, 16520), (1416, 15155), (1652, 12990), (1732, 12390), (1770, 12124), (2065, 10392), (2165, 9912), (2360, 9093), (2478, 8660), (2598, 8260), (3031, 7080), (3304, 6495), (3464, 6195), (3540, 6062), (4130, 5196), (4330, 4956)]