21766888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 27221912

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 53, 88, 104, 106, 143, 212, 286, 359, 424, 572, 583, 689, 718, 1144, 1166, 1378, 1436, 2332, 2756, 2872, 3949, 4664, 4667, 5512, 7579, 7898, 9334, 15158, 15796, 18668, 19027, 30316, 31592, 37336, 38054, 51337, 60632, 76108, 102674, 152216, 205348, 209297, 247351, 410696, 418594, 494702, 837188, 989404, 1674376, 1978808, 2720861, 5441722, 10883444, 21766888]

約数ペア:

[(1, 21766888), (2, 10883444), (4, 5441722), (8, 2720861), (11, 1978808), (13, 1674376), (22, 989404), (26, 837188), (44, 494702), (52, 418594), (53, 410696), (88, 247351), (104, 209297), (106, 205348), (143, 152216), (212, 102674), (286, 76108), (359, 60632), (424, 51337), (572, 38054), (583, 37336), (689, 31592), (718, 30316), (1144, 19027), (1166, 18668), (1378, 15796), (1436, 15158), (2332, 9334), (2756, 7898), (2872, 7579), (3949, 5512), (4664, 4667)]