21619500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 53859540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 29, 30, 35, 42, 50, 58, 60, 70, 71, 75, 84, 87, 100, 105, 116, 125, 140, 142, 145, 150, 174, 175, 203, 210, 213, 250, 284, 290, 300, 348, 350, 355, 375, 406, 420, 426, 435, 497, 500, 525, 580, 609, 700, 710, 725, 750, 812, 852, 870, 875, 994, 1015, 1050, 1065, 1218, 1420, 1450, 1491, 1500, 1740, 1750, 1775, 1988, 2030, 2059, 2100, 2130, 2175, 2436, 2485, 2625, 2900, 2982, 3045, 3500, 3550, 3625, 4060, 4118, 4260, 4350, 4970, 5075, 5250, 5325, 5964, 6090, 6177, 7100, 7250, 7455, 8236, 8700, 8875, 9940, 10150, 10295, 10500, 10650, 10875, 12180, 12354, 12425, 14413, 14500, 14910, 15225, 17750, 20300, 20590, 21300, 21750, 24708, 24850, 25375, 26625, 28826, 29820, 30450, 30885, 35500, 37275, 41180, 43239, 43500, 49700, 50750, 51475, 53250, 57652, 60900, 61770, 62125, 72065, 74550, 76125, 86478, 101500, 102950, 106500, 123540, 124250, 144130, 149100, 152250, 154425, 172956, 186375, 205900, 216195, 248500, 257375, 288260, 304500, 308850, 360325, 372750, 432390, 514750, 617700, 720650, 745500, 772125, 864780, 1029500, 1080975, 1441300, 1544250, 1801625, 2161950, 3088500, 3603250, 4323900, 5404875, 7206500, 10809750, 21619500]

約数ペア:

[(1, 21619500), (2, 10809750), (3, 7206500), (4, 5404875), (5, 4323900), (6, 3603250), (7, 3088500), (10, 2161950), (12, 1801625), (14, 1544250), (15, 1441300), (20, 1080975), (21, 1029500), (25, 864780), (28, 772125), (29, 745500), (30, 720650), (35, 617700), (42, 514750), (50, 432390), (58, 372750), (60, 360325), (70, 308850), (71, 304500), (75, 288260), (84, 257375), (87, 248500), (100, 216195), (105, 205900), (116, 186375), (125, 172956), (140, 154425), (142, 152250), (145, 149100), (150, 144130), (174, 124250), (175, 123540), (203, 106500), (210, 102950), (213, 101500), (250, 86478), (284, 76125), (290, 74550), (300, 72065), (348, 62125), (350, 61770), (355, 60900), (375, 57652), (406, 53250), (420, 51475), (426, 50750), (435, 49700), (497, 43500), (500, 43239), (525, 41180), (580, 37275), (609, 35500), (700, 30885), (710, 30450), (725, 29820), (750, 28826), (812, 26625), (852, 25375), (870, 24850), (875, 24708), (994, 21750), (1015, 21300), (1050, 20590), (1065, 20300), (1218, 17750), (1420, 15225), (1450, 14910), (1491, 14500), (1500, 14413), (1740, 12425), (1750, 12354), (1775, 12180), (1988, 10875), (2030, 10650), (2059, 10500), (2100, 10295), (2130, 10150), (2175, 9940), (2436, 8875), (2485, 8700), (2625, 8236), (2900, 7455), (2982, 7250), (3045, 7100), (3500, 6177), (3550, 6090), (3625, 5964), (4060, 5325), (4118, 5250), (4260, 5075), (4350, 4970)]