About the Number

201897212

201897211 ← → 201897213

2進数表記:1100000010001011010011111100

漢数字表記:二億百八十九万七千二百十二

素因数分解:

2 2 × 11 2 × 43 1 × 89 1 × 109 1

素因数の和:267
約数の個数: 72
約数和(自身を含む): 405543600
約数和(自身を除く): 203646388

約数列:
[1, 2, 4, 11, 22, 43, 44, 86, 89, 109, 121, 172, 178, 218, 242, 356, 436, 473, 484, 946, 979, 1199, 1892, 1958, 2398, 3827, 3916, 4687, 4796, 5203, 7654, 9374, 9701, 10406, 10769, 13189, 15308, 18748, 19402, 20812, 21538, 26378, 38804, 42097, 43076, 51557, 52756, 84194, 103114, 106711, 168388, 206228, 213422, 417143, 426844, 463067, 567127, 834286, 926134, 1134254, 1173821, 1668572, 1852268, 2268508, 2347642, 4588573, 4695284, 9177146, 18354292, 50474303, 100948606, 201897212]

約数ペア:
[(1, 201897212), (2, 100948606), (4, 50474303), (11, 18354292), (22, 9177146), (43, 4695284), (44, 4588573), (86, 2347642), (89, 2268508), (109, 1852268), (121, 1668572), (172, 1173821), (178, 1134254), (218, 926134), (242, 834286), (356, 567127), (436, 463067), (473, 426844), (484, 417143), (946, 213422), (979, 206228), (1199, 168388), (1892, 106711), (1958, 103114), (2398, 84194), (3827, 52756), (3916, 51557), (4687, 43076), (4796, 42097), (5203, 38804), (7654, 26378), (9374, 21538), (9701, 20812), (10406, 19402), (10769, 18748), (13189, 15308)]

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