21000366315

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{157}}^1\times {\mathrm{1873}}^1$

素因数の和:2090

約数の個数: 96

約数和(自身を含む): 39297330240

約数和(自身を除く): 18296963925

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 157, 207, 345, 471, 529, 621, 785, 1035, 1413, 1587, 1873, 2355, 2645, 3105, 3611, 4239, 4761, 5619, 7065, 7935, 9365, 10833, 14283, 16857, 18055, 21195, 23805, 28095, 32499, 43079, 50571, 54165, 71415, 83053, 84285, 97497, 129237, 162495, 215395, 249159, 252855, 294061, 387711, 415265, 487485, 646185, 747477, 882183, 990817, 1163133, 1245795, 1470305, 1938555, 2242431, 2646549, 2972451, 3737385, 4410915, 4954085, 5815665, 6763403, 7939647, 8917353, 11212155, 13232745, 14862255, 20290209, 26752059, 33817015, 39698235, 44586765, 60870627, 101451045, 133760295, 155558269, 182611881, 304353135, 466674807, 777791345, 913059405, 1400024421, 2333374035, 4200073263, 7000122105, 21000366315]

約数ペア:

[(1, 21000366315), (3, 7000122105), (5, 4200073263), (9, 2333374035), (15, 1400024421), (23, 913059405), (27, 777791345), (45, 466674807), (69, 304353135), (115, 182611881), (135, 155558269), (157, 133760295), (207, 101451045), (345, 60870627), (471, 44586765), (529, 39698235), (621, 33817015), (785, 26752059), (1035, 20290209), (1413, 14862255), (1587, 13232745), (1873, 11212155), (2355, 8917353), (2645, 7939647), (3105, 6763403), (3611, 5815665), (4239, 4954085), (4761, 4410915), (5619, 3737385), (7065, 2972451), (7935, 2646549), (9365, 2242431), (10833, 1938555), (14283, 1470305), (16857, 1245795), (18055, 1163133), (21195, 990817), (23805, 882183), (28095, 747477), (32499, 646185), (43079, 487485), (50571, 415265), (54165, 387711), (71415, 294061), (83053, 252855), (84285, 249159), (97497, 215395), (129237, 162495)]