About the Number

29880981

29880980 ← → 29880982

2進数表記:1110001111111001010010101

漢数字表記:二千九百八十八万九百八十一

素因数分解:

3 7 × 13 1 × 1051 1

素因数の和:1085
約数の個数: 32
約数和(自身を含む): 48307840
約数和(自身を除く): 18426859

約数列:
[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1051, 1053, 2187, 3153, 3159, 9459, 9477, 13663, 28377, 28431, 40989, 85131, 122967, 255393, 368901, 766179, 1106703, 2298537, 3320109, 9960327, 29880981]

約数ペア:
[(1, 29880981), (3, 9960327), (9, 3320109), (13, 2298537), (27, 1106703), (39, 766179), (81, 368901), (117, 255393), (243, 122967), (351, 85131), (729, 40989), (1051, 28431), (1053, 28377), (2187, 13663), (3153, 9477), (3159, 9459)]

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