20488446

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:462

約数の個数: 72

約数和(自身を含む): 51040080

約数和(自身を除く): 30551634

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 33, 46, 66, 69, 99, 121, 138, 198, 207, 242, 253, 363, 409, 414, 506, 726, 759, 818, 1089, 1227, 1518, 2178, 2277, 2454, 2783, 3681, 4499, 4554, 5566, 7362, 8349, 8998, 9407, 13497, 16698, 18814, 25047, 26994, 28221, 40491, 49489, 50094, 56442, 80982, 84663, 98978, 103477, 148467, 169326, 206954, 296934, 310431, 445401, 620862, 890802, 931293, 1138247, 1862586, 2276494, 3414741, 6829482, 10244223, 20488446]

約数ペア:

[(1, 20488446), (2, 10244223), (3, 6829482), (6, 3414741), (9, 2276494), (11, 1862586), (18, 1138247), (22, 931293), (23, 890802), (33, 620862), (46, 445401), (66, 310431), (69, 296934), (99, 206954), (121, 169326), (138, 148467), (198, 103477), (207, 98978), (242, 84663), (253, 80982), (363, 56442), (409, 50094), (414, 49489), (506, 40491), (726, 28221), (759, 26994), (818, 25047), (1089, 18814), (1227, 16698), (1518, 13497), (2178, 9407), (2277, 8998), (2454, 8349), (2783, 7362), (3681, 5566), (4499, 4554)]