About the Number

2154988

2154987 ← → 2154989

2進数表記:1000001110000111101100

漢数字表記:二百十五万四千九百八十八

素因数分解:

2 2 × 11 1 × 17 1 × 43 1 × 67 1

素因数の和:142
約数の個数: 48
約数和(自身を含む): 4523904
約数和(自身を除く): 2368916

約数列:
[1, 2, 4, 11, 17, 22, 34, 43, 44, 67, 68, 86, 134, 172, 187, 268, 374, 473, 731, 737, 748, 946, 1139, 1462, 1474, 1892, 2278, 2881, 2924, 2948, 4556, 5762, 8041, 11524, 12529, 16082, 25058, 31691, 32164, 48977, 50116, 63382, 97954, 126764, 195908, 538747, 1077494, 2154988]

約数ペア:
[(1, 2154988), (2, 1077494), (4, 538747), (11, 195908), (17, 126764), (22, 97954), (34, 63382), (43, 50116), (44, 48977), (67, 32164), (68, 31691), (86, 25058), (134, 16082), (172, 12529), (187, 11524), (268, 8041), (374, 5762), (473, 4556), (731, 2948), (737, 2924), (748, 2881), (946, 2278), (1139, 1892), (1462, 1474)]

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