21778328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19037}}^1$

素因数の和:19067

約数の個数: 32

約数和(自身を含む): 47975760

約数和(自身を除く): 26197432

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 19037, 38074, 76148, 152296, 209407, 247481, 418814, 494962, 837628, 989924, 1675256, 1979848, 2722291, 5444582, 10889164, 21778328]

約数ペア:

[(1, 21778328), (2, 10889164), (4, 5444582), (8, 2722291), (11, 1979848), (13, 1675256), (22, 989924), (26, 837628), (44, 494962), (52, 418814), (88, 247481), (104, 209407), (143, 152296), (286, 76148), (572, 38074), (1144, 19037)]