21505500

素因数分解:

$2^2\times 3^6\times 5^3\times {\mathrm{59}}^1$

素因数の和:96

約数の個数: 168

約数和(自身を含む): 71613360

約数和(自身を除く): 50107860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 59, 60, 75, 81, 90, 100, 108, 118, 125, 135, 150, 162, 177, 180, 225, 236, 243, 250, 270, 295, 300, 324, 354, 375, 405, 450, 486, 500, 531, 540, 590, 675, 708, 729, 750, 810, 885, 900, 972, 1062, 1125, 1180, 1215, 1350, 1458, 1475, 1500, 1593, 1620, 1770, 2025, 2124, 2250, 2430, 2655, 2700, 2916, 2950, 3186, 3375, 3540, 3645, 4050, 4425, 4500, 4779, 4860, 5310, 5900, 6075, 6372, 6750, 7290, 7375, 7965, 8100, 8850, 9558, 10125, 10620, 12150, 13275, 13500, 14337, 14580, 14750, 15930, 17700, 18225, 19116, 20250, 22125, 23895, 24300, 26550, 28674, 29500, 30375, 31860, 36450, 39825, 40500, 43011, 44250, 47790, 53100, 57348, 60750, 66375, 71685, 72900, 79650, 86022, 88500, 91125, 95580, 119475, 121500, 132750, 143370, 159300, 172044, 182250, 199125, 215055, 238950, 265500, 286740, 358425, 364500, 398250, 430110, 477900, 597375, 716850, 796500, 860220, 1075275, 1194750, 1433700, 1792125, 2150550, 2389500, 3584250, 4301100, 5376375, 7168500, 10752750, 21505500]

約数ペア:

[(1, 21505500), (2, 10752750), (3, 7168500), (4, 5376375), (5, 4301100), (6, 3584250), (9, 2389500), (10, 2150550), (12, 1792125), (15, 1433700), (18, 1194750), (20, 1075275), (25, 860220), (27, 796500), (30, 716850), (36, 597375), (45, 477900), (50, 430110), (54, 398250), (59, 364500), (60, 358425), (75, 286740), (81, 265500), (90, 238950), (100, 215055), (108, 199125), (118, 182250), (125, 172044), (135, 159300), (150, 143370), (162, 132750), (177, 121500), (180, 119475), (225, 95580), (236, 91125), (243, 88500), (250, 86022), (270, 79650), (295, 72900), (300, 71685), (324, 66375), (354, 60750), (375, 57348), (405, 53100), (450, 47790), (486, 44250), (500, 43011), (531, 40500), (540, 39825), (590, 36450), (675, 31860), (708, 30375), (729, 29500), (750, 28674), (810, 26550), (885, 24300), (900, 23895), (972, 22125), (1062, 20250), (1125, 19116), (1180, 18225), (1215, 17700), (1350, 15930), (1458, 14750), (1475, 14580), (1500, 14337), (1593, 13500), (1620, 13275), (1770, 12150), (2025, 10620), (2124, 10125), (2250, 9558), (2430, 8850), (2655, 8100), (2700, 7965), (2916, 7375), (2950, 7290), (3186, 6750), (3375, 6372), (3540, 6075), (3645, 5900), (4050, 5310), (4425, 4860), (4500, 4779)]