28243647

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:131

約数の個数: 56

約数和(自身を含む): 46745424

約数和(自身を除く): 18501777

約数列:

[1, 3, 9, 17, 27, 43, 51, 53, 81, 129, 153, 159, 243, 387, 459, 477, 729, 731, 901, 1161, 1377, 1431, 2193, 2279, 2703, 3483, 4131, 4293, 6579, 6837, 8109, 10449, 12393, 12879, 19737, 20511, 24327, 31347, 38637, 38743, 59211, 61533, 72981, 116229, 177633, 184599, 218943, 348687, 532899, 553797, 656829, 1046061, 1661391, 3138183, 9414549, 28243647]

約数ペア:

[(1, 28243647), (3, 9414549), (9, 3138183), (17, 1661391), (27, 1046061), (43, 656829), (51, 553797), (53, 532899), (81, 348687), (129, 218943), (153, 184599), (159, 177633), (243, 116229), (387, 72981), (459, 61533), (477, 59211), (729, 38743), (731, 38637), (901, 31347), (1161, 24327), (1377, 20511), (1431, 19737), (2193, 12879), (2279, 12393), (2703, 10449), (3483, 8109), (4131, 6837), (4293, 6579)]