About the Number

30988971

30988970 ← → 30988972

2進数表記:1110110001101101010101011

漢数字表記:三千九十八万八千九百七十一

素因数分解:

3 2 × 13 1 × 173 1 × 1531 1

素因数の和:1723
約数の個数: 24
約数和(自身を含む): 48515376
約数和(自身を除く): 17526405

約数列:
[1, 3, 9, 13, 39, 117, 173, 519, 1531, 1557, 2249, 4593, 6747, 13779, 19903, 20241, 59709, 179127, 264863, 794589, 2383767, 3443219, 10329657, 30988971]

約数ペア:
[(1, 30988971), (3, 10329657), (9, 3443219), (13, 2383767), (39, 794589), (117, 264863), (173, 179127), (519, 59709), (1531, 20241), (1557, 19903), (2249, 13779), (4593, 6747)]

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