About the Number

100981991

100981990 ← → 100981992

2進数表記:110000001001101110011100111

漢数字表記:一億九十八万千九百九十一

素因数分解:

11 1 × 37 1 × 47 1 × 5279 1

素因数の和:5374
約数の個数: 16
約数和(自身を含む): 115568640
約数和(自身を除く): 14586649

約数列:
[1, 11, 37, 47, 407, 517, 1739, 5279, 19129, 58069, 195323, 248113, 2148553, 2729243, 9180181, 100981991]

約数ペア:
[(1, 100981991), (11, 9180181), (37, 2729243), (47, 2148553), (407, 248113), (517, 195323), (1739, 58069), (5279, 19129)]

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