About the Number

21330988

21330987 ← → 21330989

2進数表記:1010001010111110000101100

漢数字表記:二千百三十三万九百八十八

素因数分解:

2 2 × 7 1 × 17 1 × 41 1 × 1093 1

素因数の和:1162
約数の個数: 48
約数和(自身を含む): 46315584
約数和(自身を除く): 24984596

約数列:
[1, 2, 4, 7, 14, 17, 28, 34, 41, 68, 82, 119, 164, 238, 287, 476, 574, 697, 1093, 1148, 1394, 2186, 2788, 4372, 4879, 7651, 9758, 15302, 18581, 19516, 30604, 37162, 44813, 74324, 89626, 130067, 179252, 260134, 313691, 520268, 627382, 761821, 1254764, 1523642, 3047284, 5332747, 10665494, 21330988]

約数ペア:
[(1, 21330988), (2, 10665494), (4, 5332747), (7, 3047284), (14, 1523642), (17, 1254764), (28, 761821), (34, 627382), (41, 520268), (68, 313691), (82, 260134), (119, 179252), (164, 130067), (238, 89626), (287, 74324), (476, 44813), (574, 37162), (697, 30604), (1093, 19516), (1148, 18581), (1394, 15302), (2186, 9758), (2788, 7651), (4372, 4879)]

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