21707088

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:876

約数の個数: 80

約数和(自身を含む): 61871040

約数和(自身を除く): 40163952

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 43, 48, 52, 78, 86, 104, 129, 156, 172, 208, 258, 312, 344, 516, 559, 624, 688, 809, 1032, 1118, 1618, 1677, 2064, 2236, 2427, 3236, 3354, 4472, 4854, 6472, 6708, 8944, 9708, 10517, 12944, 13416, 19416, 21034, 26832, 31551, 34787, 38832, 42068, 63102, 69574, 84136, 104361, 126204, 139148, 168272, 208722, 252408, 278296, 417444, 452231, 504816, 556592, 834888, 904462, 1356693, 1669776, 1808924, 2713386, 3617848, 5426772, 7235696, 10853544, 21707088]

約数ペア:

[(1, 21707088), (2, 10853544), (3, 7235696), (4, 5426772), (6, 3617848), (8, 2713386), (12, 1808924), (13, 1669776), (16, 1356693), (24, 904462), (26, 834888), (39, 556592), (43, 504816), (48, 452231), (52, 417444), (78, 278296), (86, 252408), (104, 208722), (129, 168272), (156, 139148), (172, 126204), (208, 104361), (258, 84136), (312, 69574), (344, 63102), (516, 42068), (559, 38832), (624, 34787), (688, 31551), (809, 26832), (1032, 21034), (1118, 19416), (1618, 13416), (1677, 12944), (2064, 10517), (2236, 9708), (2427, 8944), (3236, 6708), (3354, 6472), (4472, 4854)]