21353640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2311}}^1$

素因数の和:2343

約数の個数: 128

約数和(自身を含む): 79902720

約数和(自身を除く): 58549080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 2311, 3080, 4620, 4622, 6933, 9240, 9244, 11555, 13866, 16177, 18488, 23110, 25421, 27732, 32354, 34665, 46220, 48531, 50842, 55464, 64708, 69330, 76263, 80885, 92440, 97062, 101684, 127105, 129416, 138660, 152526, 161770, 177947, 194124, 203368, 242655, 254210, 277320, 305052, 323540, 355894, 381315, 388248, 485310, 508420, 533841, 610104, 647080, 711788, 762630, 889735, 970620, 1016840, 1067682, 1423576, 1525260, 1779470, 1941240, 2135364, 2669205, 3050520, 3558940, 4270728, 5338410, 7117880, 10676820, 21353640]

約数ペア:

[(1, 21353640), (2, 10676820), (3, 7117880), (4, 5338410), (5, 4270728), (6, 3558940), (7, 3050520), (8, 2669205), (10, 2135364), (11, 1941240), (12, 1779470), (14, 1525260), (15, 1423576), (20, 1067682), (21, 1016840), (22, 970620), (24, 889735), (28, 762630), (30, 711788), (33, 647080), (35, 610104), (40, 533841), (42, 508420), (44, 485310), (55, 388248), (56, 381315), (60, 355894), (66, 323540), (70, 305052), (77, 277320), (84, 254210), (88, 242655), (105, 203368), (110, 194124), (120, 177947), (132, 161770), (140, 152526), (154, 138660), (165, 129416), (168, 127105), (210, 101684), (220, 97062), (231, 92440), (264, 80885), (280, 76263), (308, 69330), (330, 64708), (385, 55464), (420, 50842), (440, 48531), (462, 46220), (616, 34665), (660, 32354), (770, 27732), (840, 25421), (924, 23110), (1155, 18488), (1320, 16177), (1540, 13866), (1848, 11555), (2310, 9244), (2311, 9240), (3080, 6933), (4620, 4622)]