19914984

素因数分解:

$2^3\times 3^4\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 56678820

約数和(自身を除く): 36763836

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 73, 81, 108, 146, 162, 216, 219, 292, 324, 421, 438, 584, 648, 657, 842, 876, 1263, 1314, 1684, 1752, 1971, 2526, 2628, 3368, 3789, 3942, 5052, 5256, 5913, 7578, 7884, 10104, 11367, 11826, 15156, 15768, 22734, 23652, 30312, 30733, 34101, 45468, 47304, 61466, 68202, 90936, 92199, 122932, 136404, 184398, 245864, 272808, 276597, 368796, 553194, 737592, 829791, 1106388, 1659582, 2212776, 2489373, 3319164, 4978746, 6638328, 9957492, 19914984]

約数ペア:

[(1, 19914984), (2, 9957492), (3, 6638328), (4, 4978746), (6, 3319164), (8, 2489373), (9, 2212776), (12, 1659582), (18, 1106388), (24, 829791), (27, 737592), (36, 553194), (54, 368796), (72, 276597), (73, 272808), (81, 245864), (108, 184398), (146, 136404), (162, 122932), (216, 92199), (219, 90936), (292, 68202), (324, 61466), (421, 47304), (438, 45468), (584, 34101), (648, 30733), (657, 30312), (842, 23652), (876, 22734), (1263, 15768), (1314, 15156), (1684, 11826), (1752, 11367), (1971, 10104), (2526, 7884), (2628, 7578), (3368, 5913), (3789, 5256), (3942, 5052)]