About the Number

20291772

20291771 ← → 20291773

2進数表記:1001101011010000010111100

漢数字表記:二千二十九万千七百七十二

素因数分解:

2 2 × 3 1 × 19 1 × 61 1 × 1459 1

素因数の和:1546
約数の個数: 48
約数和(自身を含む): 50691200
約数和(自身を除く): 30399428

約数列:
[1, 2, 3, 4, 6, 12, 19, 38, 57, 61, 76, 114, 122, 183, 228, 244, 366, 732, 1159, 1459, 2318, 2918, 3477, 4377, 4636, 5836, 6954, 8754, 13908, 17508, 27721, 55442, 83163, 88999, 110884, 166326, 177998, 266997, 332652, 355996, 533994, 1067988, 1690981, 3381962, 5072943, 6763924, 10145886, 20291772]

約数ペア:
[(1, 20291772), (2, 10145886), (3, 6763924), (4, 5072943), (6, 3381962), (12, 1690981), (19, 1067988), (38, 533994), (57, 355996), (61, 332652), (76, 266997), (114, 177998), (122, 166326), (183, 110884), (228, 88999), (244, 83163), (366, 55442), (732, 27721), (1159, 17508), (1459, 13908), (2318, 8754), (2918, 6954), (3477, 5836), (4377, 4636)]

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