About the Number

138386979

138386978 ← → 138386980

2進数表記:1000001111111001111000100011

漢数字表記:一億三千八百三十八万六千九百七十九

素因数分解:

3 2 × 61 1 × 83 1 × 3037 1

素因数の和:3187
約数の個数: 24
約数和(自身を含む): 205684752
約数和(自身を除く): 67297773

約数列:
[1, 3, 9, 61, 83, 183, 249, 549, 747, 3037, 5063, 9111, 15189, 27333, 45567, 185257, 252071, 555771, 756213, 1667313, 2268639, 15376331, 46128993, 138386979]

約数ペア:
[(1, 138386979), (3, 46128993), (9, 15376331), (61, 2268639), (83, 1667313), (183, 756213), (249, 555771), (549, 252071), (747, 185257), (3037, 45567), (5063, 27333), (9111, 15189)]

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