About the Number

212721408

212721407 ← → 212721409

2進数表記:1100101011011101111100000000

漢数字表記:二億千二百七十二万千四百八

素因数分解:

2 8 × 3 2 × 17 1 × 5431 1

素因数の和:5470
約数の個数: 108
約数和(自身を含む): 649525968
約数和(自身を除く): 436804560

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 64, 68, 72, 96, 102, 128, 136, 144, 153, 192, 204, 256, 272, 288, 306, 384, 408, 544, 576, 612, 768, 816, 1088, 1152, 1224, 1632, 2176, 2304, 2448, 3264, 4352, 4896, 5431, 6528, 9792, 10862, 13056, 16293, 19584, 21724, 32586, 39168, 43448, 48879, 65172, 86896, 92327, 97758, 130344, 173792, 184654, 195516, 260688, 276981, 347584, 369308, 391032, 521376, 553962, 695168, 738616, 782064, 830943, 1042752, 1107924, 1390336, 1477232, 1564128, 1661886, 2085504, 2215848, 2954464, 3128256, 3323772, 4171008, 4431696, 5908928, 6256512, 6647544, 8863392, 11817856, 12513024, 13295088, 17726784, 23635712, 26590176, 35453568, 53180352, 70907136, 106360704, 212721408]

約数ペア:
[(1, 212721408), (2, 106360704), (3, 70907136), (4, 53180352), (6, 35453568), (8, 26590176), (9, 23635712), (12, 17726784), (16, 13295088), (17, 12513024), (18, 11817856), (24, 8863392), (32, 6647544), (34, 6256512), (36, 5908928), (48, 4431696), (51, 4171008), (64, 3323772), (68, 3128256), (72, 2954464), (96, 2215848), (102, 2085504), (128, 1661886), (136, 1564128), (144, 1477232), (153, 1390336), (192, 1107924), (204, 1042752), (256, 830943), (272, 782064), (288, 738616), (306, 695168), (384, 553962), (408, 521376), (544, 391032), (576, 369308), (612, 347584), (768, 276981), (816, 260688), (1088, 195516), (1152, 184654), (1224, 173792), (1632, 130344), (2176, 97758), (2304, 92327), (2448, 86896), (3264, 65172), (4352, 48879), (4896, 43448), (5431, 39168), (6528, 32586), (9792, 21724), (10862, 19584), (13056, 16293)]

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