21978984

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1373}}^1$

素因数の和:1434

約数の個数: 64

約数和(自身を含む): 59356800

約数和(自身を除く): 37377816

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 29, 46, 58, 69, 87, 92, 116, 138, 174, 184, 232, 276, 348, 552, 667, 696, 1334, 1373, 2001, 2668, 2746, 4002, 4119, 5336, 5492, 8004, 8238, 10984, 16008, 16476, 31579, 32952, 39817, 63158, 79634, 94737, 119451, 126316, 159268, 189474, 238902, 252632, 318536, 378948, 477804, 757896, 915791, 955608, 1831582, 2747373, 3663164, 5494746, 7326328, 10989492, 21978984]

約数ペア:

[(1, 21978984), (2, 10989492), (3, 7326328), (4, 5494746), (6, 3663164), (8, 2747373), (12, 1831582), (23, 955608), (24, 915791), (29, 757896), (46, 477804), (58, 378948), (69, 318536), (87, 252632), (92, 238902), (116, 189474), (138, 159268), (174, 126316), (184, 119451), (232, 94737), (276, 79634), (348, 63158), (552, 39817), (667, 32952), (696, 31579), (1334, 16476), (1373, 16008), (2001, 10984), (2668, 8238), (2746, 8004), (4002, 5492), (4119, 5336)]