21537900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{2659}}^1$

素因数の和:2685

約数の個数: 90

約数和(自身を含む): 69843620

約数和(自身を除く): 48305720

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2659, 2700, 4050, 5318, 7977, 8100, 10636, 13295, 15954, 23931, 26590, 31908, 39885, 47862, 53180, 66475, 71793, 79770, 95724, 119655, 132950, 143586, 159540, 199425, 215379, 239310, 265900, 287172, 358965, 398850, 430758, 478620, 598275, 717930, 797700, 861516, 1076895, 1196550, 1435860, 1794825, 2153790, 2393100, 3589650, 4307580, 5384475, 7179300, 10768950, 21537900]

約数ペア:

[(1, 21537900), (2, 10768950), (3, 7179300), (4, 5384475), (5, 4307580), (6, 3589650), (9, 2393100), (10, 2153790), (12, 1794825), (15, 1435860), (18, 1196550), (20, 1076895), (25, 861516), (27, 797700), (30, 717930), (36, 598275), (45, 478620), (50, 430758), (54, 398850), (60, 358965), (75, 287172), (81, 265900), (90, 239310), (100, 215379), (108, 199425), (135, 159540), (150, 143586), (162, 132950), (180, 119655), (225, 95724), (270, 79770), (300, 71793), (324, 66475), (405, 53180), (450, 47862), (540, 39885), (675, 31908), (810, 26590), (900, 23931), (1350, 15954), (1620, 13295), (2025, 10636), (2659, 8100), (2700, 7977), (4050, 5318)]