About the Number

137907891

137907890 ← → 137907892

2進数表記:1000001110000100111010110011

漢数字表記:一億三千七百九十万七千八百九十一

素因数分解:

3 2 × 11 1 × 389 1 × 3581 1

素因数の和:3987
約数の個数: 24
約数和(自身を含む): 217928880
約数和(自身を除く): 80020989

約数列:
[1, 3, 9, 11, 33, 99, 389, 1167, 3501, 3581, 4279, 10743, 12837, 32229, 38511, 39391, 118173, 354519, 1393009, 4179027, 12537081, 15323099, 45969297, 137907891]

約数ペア:
[(1, 137907891), (3, 45969297), (9, 15323099), (11, 12537081), (33, 4179027), (99, 1393009), (389, 354519), (1167, 118173), (3501, 39391), (3581, 38511), (4279, 32229), (10743, 12837)]

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