21334040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5861}}^1$

素因数の和:5892

約数の個数: 64

約数和(自身を含む): 59088960

約数和(自身を除く): 37754920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5861, 11722, 23444, 29305, 41027, 46888, 58610, 76193, 82054, 117220, 152386, 164108, 205135, 234440, 304772, 328216, 380965, 410270, 533351, 609544, 761930, 820540, 1066702, 1523860, 1641080, 2133404, 2666755, 3047720, 4266808, 5333510, 10667020, 21334040]

約数ペア:

[(1, 21334040), (2, 10667020), (4, 5333510), (5, 4266808), (7, 3047720), (8, 2666755), (10, 2133404), (13, 1641080), (14, 1523860), (20, 1066702), (26, 820540), (28, 761930), (35, 609544), (40, 533351), (52, 410270), (56, 380965), (65, 328216), (70, 304772), (91, 234440), (104, 205135), (130, 164108), (140, 152386), (182, 117220), (260, 82054), (280, 76193), (364, 58610), (455, 46888), (520, 41027), (728, 29305), (910, 23444), (1820, 11722), (3640, 5861)]