21000612438

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3902009}}^1$

素因数の和:3902053

約数の個数: 48

約数和(自身を含む): 51131939040

約数和(自身を除く): 30131326602

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 39, 46, 69, 78, 117, 138, 207, 234, 299, 414, 598, 897, 1794, 2691, 5382, 3902009, 7804018, 11706027, 23412054, 35118081, 50726117, 70236162, 89746207, 101452234, 152178351, 179492414, 269238621, 304356702, 456535053, 538477242, 807715863, 913070106, 1166700691, 1615431726, 2333401382, 3500102073, 7000204146, 10500306219, 21000612438]

約数ペア:

[(1, 21000612438), (2, 10500306219), (3, 7000204146), (6, 3500102073), (9, 2333401382), (13, 1615431726), (18, 1166700691), (23, 913070106), (26, 807715863), (39, 538477242), (46, 456535053), (69, 304356702), (78, 269238621), (117, 179492414), (138, 152178351), (207, 101452234), (234, 89746207), (299, 70236162), (414, 50726117), (598, 35118081), (897, 23412054), (1794, 11706027), (2691, 7804018), (5382, 3902009)]