About the Number

21010721904

21010721903 ← → 21010721905

2進数表記:10011100100010101100010110001110000

漢数字表記:二百十億千七十二万千九百四

素因数分解:

2 4 × 3 2 × 23 1 × 61 1 × 103997 1

素因数の和:104095
約数の個数: 120
約数和(自身を含む): 62363856672
約数和(自身を除く): 41353134768

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 61, 69, 72, 92, 122, 138, 144, 183, 184, 207, 244, 276, 366, 368, 414, 488, 549, 552, 732, 828, 976, 1098, 1104, 1403, 1464, 1656, 2196, 2806, 2928, 3312, 4209, 4392, 5612, 8418, 8784, 11224, 12627, 16836, 22448, 25254, 33672, 50508, 67344, 101016, 103997, 202032, 207994, 311991, 415988, 623982, 831976, 935973, 1247964, 1663952, 1871946, 2391931, 2495928, 3743892, 4783862, 4991856, 6343817, 7175793, 7487784, 9567724, 12687634, 14351586, 14975568, 19031451, 19135448, 21527379, 25375268, 28703172, 38062902, 38270896, 43054758, 50750536, 57094353, 57406344, 76125804, 86109516, 101501072, 114188706, 114812688, 145907791, 152251608, 172219032, 228377412, 291815582, 304503216, 344438064, 437723373, 456754824, 583631164, 875446746, 913509648, 1167262328, 1313170119, 1750893492, 2334524656, 2626340238, 3501786984, 5252680476, 7003573968, 10505360952, 21010721904]

約数ペア:
[(1, 21010721904), (2, 10505360952), (3, 7003573968), (4, 5252680476), (6, 3501786984), (8, 2626340238), (9, 2334524656), (12, 1750893492), (16, 1313170119), (18, 1167262328), (23, 913509648), (24, 875446746), (36, 583631164), (46, 456754824), (48, 437723373), (61, 344438064), (69, 304503216), (72, 291815582), (92, 228377412), (122, 172219032), (138, 152251608), (144, 145907791), (183, 114812688), (184, 114188706), (207, 101501072), (244, 86109516), (276, 76125804), (366, 57406344), (368, 57094353), (414, 50750536), (488, 43054758), (549, 38270896), (552, 38062902), (732, 28703172), (828, 25375268), (976, 21527379), (1098, 19135448), (1104, 19031451), (1403, 14975568), (1464, 14351586), (1656, 12687634), (2196, 9567724), (2806, 7487784), (2928, 7175793), (3312, 6343817), (4209, 4991856), (4392, 4783862), (5612, 3743892), (8418, 2495928), (8784, 2391931), (11224, 1871946), (12627, 1663952), (16836, 1247964), (22448, 935973), (25254, 831976), (33672, 623982), (50508, 415988), (67344, 311991), (101016, 207994), (103997, 202032)]

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