21656250

素因数分解:

$2^1\times 3^2\times 5^6\times 7^1\times {\mathrm{11}}^1$

素因数の和:56

約数の個数: 168

約数和(自身を含む): 73124064

約数和(自身を除く): 51467814

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 25, 30, 33, 35, 42, 45, 50, 55, 63, 66, 70, 75, 77, 90, 99, 105, 110, 125, 126, 150, 154, 165, 175, 198, 210, 225, 231, 250, 275, 315, 330, 350, 375, 385, 450, 462, 495, 525, 550, 625, 630, 693, 750, 770, 825, 875, 990, 1050, 1125, 1155, 1250, 1375, 1386, 1575, 1650, 1750, 1875, 1925, 2250, 2310, 2475, 2625, 2750, 3125, 3150, 3465, 3750, 3850, 4125, 4375, 4950, 5250, 5625, 5775, 6250, 6875, 6930, 7875, 8250, 8750, 9375, 9625, 11250, 11550, 12375, 13125, 13750, 15625, 15750, 17325, 18750, 19250, 20625, 21875, 24750, 26250, 28125, 28875, 31250, 34375, 34650, 39375, 41250, 43750, 46875, 48125, 56250, 57750, 61875, 65625, 68750, 78750, 86625, 93750, 96250, 103125, 109375, 123750, 131250, 140625, 144375, 171875, 173250, 196875, 206250, 218750, 240625, 281250, 288750, 309375, 328125, 343750, 393750, 433125, 481250, 515625, 618750, 656250, 721875, 866250, 984375, 1031250, 1203125, 1443750, 1546875, 1968750, 2165625, 2406250, 3093750, 3609375, 4331250, 7218750, 10828125, 21656250]

約数ペア:

[(1, 21656250), (2, 10828125), (3, 7218750), (5, 4331250), (6, 3609375), (7, 3093750), (9, 2406250), (10, 2165625), (11, 1968750), (14, 1546875), (15, 1443750), (18, 1203125), (21, 1031250), (22, 984375), (25, 866250), (30, 721875), (33, 656250), (35, 618750), (42, 515625), (45, 481250), (50, 433125), (55, 393750), (63, 343750), (66, 328125), (70, 309375), (75, 288750), (77, 281250), (90, 240625), (99, 218750), (105, 206250), (110, 196875), (125, 173250), (126, 171875), (150, 144375), (154, 140625), (165, 131250), (175, 123750), (198, 109375), (210, 103125), (225, 96250), (231, 93750), (250, 86625), (275, 78750), (315, 68750), (330, 65625), (350, 61875), (375, 57750), (385, 56250), (450, 48125), (462, 46875), (495, 43750), (525, 41250), (550, 39375), (625, 34650), (630, 34375), (693, 31250), (750, 28875), (770, 28125), (825, 26250), (875, 24750), (990, 21875), (1050, 20625), (1125, 19250), (1155, 18750), (1250, 17325), (1375, 15750), (1386, 15625), (1575, 13750), (1650, 13125), (1750, 12375), (1875, 11550), (1925, 11250), (2250, 9625), (2310, 9375), (2475, 8750), (2625, 8250), (2750, 7875), (3125, 6930), (3150, 6875), (3465, 6250), (3750, 5775), (3850, 5625), (4125, 5250), (4375, 4950)]