21073360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{311}}^1$

素因数の和:353

約数の個数: 120

約数和(自身を含む): 61746048

約数和(自身を除く): 40672688

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 121, 140, 154, 176, 220, 242, 280, 308, 311, 385, 440, 484, 560, 605, 616, 622, 770, 847, 880, 968, 1210, 1232, 1244, 1540, 1555, 1694, 1936, 2177, 2420, 2488, 3080, 3110, 3388, 3421, 4235, 4354, 4840, 4976, 6160, 6220, 6776, 6842, 8470, 8708, 9680, 10885, 12440, 13552, 13684, 16940, 17105, 17416, 21770, 23947, 24880, 27368, 33880, 34210, 34832, 37631, 43540, 47894, 54736, 67760, 68420, 75262, 87080, 95788, 119735, 136840, 150524, 174160, 188155, 191576, 239470, 263417, 273680, 301048, 376310, 383152, 478940, 526834, 602096, 752620, 957880, 1053668, 1317085, 1505240, 1915760, 2107336, 2634170, 3010480, 4214672, 5268340, 10536680, 21073360]

約数ペア:

[(1, 21073360), (2, 10536680), (4, 5268340), (5, 4214672), (7, 3010480), (8, 2634170), (10, 2107336), (11, 1915760), (14, 1505240), (16, 1317085), (20, 1053668), (22, 957880), (28, 752620), (35, 602096), (40, 526834), (44, 478940), (55, 383152), (56, 376310), (70, 301048), (77, 273680), (80, 263417), (88, 239470), (110, 191576), (112, 188155), (121, 174160), (140, 150524), (154, 136840), (176, 119735), (220, 95788), (242, 87080), (280, 75262), (308, 68420), (311, 67760), (385, 54736), (440, 47894), (484, 43540), (560, 37631), (605, 34832), (616, 34210), (622, 33880), (770, 27368), (847, 24880), (880, 23947), (968, 21770), (1210, 17416), (1232, 17105), (1244, 16940), (1540, 13684), (1555, 13552), (1694, 12440), (1936, 10885), (2177, 9680), (2420, 8708), (2488, 8470), (3080, 6842), (3110, 6776), (3388, 6220), (3421, 6160), (4235, 4976), (4354, 4840)]