About the Number

21518848

21518847 ← → 21518849

2進数表記:1010010000101101000000000

漢数字表記:二千百五十一万八千八百四十八

素因数分解:

2 9 × 13 1 × 53 1 × 61 1

素因数の和:145
約数の個数: 80
約数和(自身を含む): 47950056
約数和(自身を除く): 26431208

約数列:
[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 61, 64, 104, 106, 122, 128, 208, 212, 244, 256, 416, 424, 488, 512, 689, 793, 832, 848, 976, 1378, 1586, 1664, 1696, 1952, 2756, 3172, 3233, 3328, 3392, 3904, 5512, 6344, 6466, 6656, 6784, 7808, 11024, 12688, 12932, 13568, 15616, 22048, 25376, 25864, 27136, 31232, 42029, 44096, 50752, 51728, 84058, 88192, 101504, 103456, 168116, 176384, 203008, 206912, 336232, 352768, 406016, 413824, 672464, 827648, 1344928, 1655296, 2689856, 5379712, 10759424, 21518848]

約数ペア:
[(1, 21518848), (2, 10759424), (4, 5379712), (8, 2689856), (13, 1655296), (16, 1344928), (26, 827648), (32, 672464), (52, 413824), (53, 406016), (61, 352768), (64, 336232), (104, 206912), (106, 203008), (122, 176384), (128, 168116), (208, 103456), (212, 101504), (244, 88192), (256, 84058), (416, 51728), (424, 50752), (488, 44096), (512, 42029), (689, 31232), (793, 27136), (832, 25864), (848, 25376), (976, 22048), (1378, 15616), (1586, 13568), (1664, 12932), (1696, 12688), (1952, 11024), (2756, 7808), (3172, 6784), (3233, 6656), (3328, 6466), (3392, 6344), (3904, 5512)]

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