20784850947

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{366169}}^1$

素因数の和:366252

約数の個数: 48

約数和(自身を含む): 37015392960

約数和(自身を除く): 16230542013

約数列:

[1, 3, 7, 9, 17, 21, 51, 53, 63, 119, 153, 159, 357, 371, 477, 901, 1071, 1113, 2703, 3339, 6307, 8109, 18921, 56763, 366169, 1098507, 2563183, 3295521, 6224873, 7689549, 18674619, 19406957, 23068647, 43574111, 56023857, 58220871, 130722333, 135848699, 174662613, 329918269, 392166999, 407546097, 989754807, 1222638291, 2309427883, 2969264421, 6928283649, 20784850947]

約数ペア:

[(1, 20784850947), (3, 6928283649), (7, 2969264421), (9, 2309427883), (17, 1222638291), (21, 989754807), (51, 407546097), (53, 392166999), (63, 329918269), (119, 174662613), (153, 135848699), (159, 130722333), (357, 58220871), (371, 56023857), (477, 43574111), (901, 23068647), (1071, 19406957), (1113, 18674619), (2703, 7689549), (3339, 6224873), (6307, 3295521), (8109, 2563183), (18921, 1098507), (56763, 366169)]