About the Number

12884991

12884990 ← → 12884992

2進数表記:110001001001101111111111

漢数字表記:千二百八十八万四千九百九十一

素因数分解:

3 1 × 7 2 × 23 1 × 37 1 × 103 1

素因数の和:180
約数の個数: 48
約数和(自身を含む): 21625344
約数和(自身を除く): 8740353

約数列:
[1, 3, 7, 21, 23, 37, 49, 69, 103, 111, 147, 161, 259, 309, 483, 721, 777, 851, 1127, 1813, 2163, 2369, 2553, 3381, 3811, 5047, 5439, 5957, 7107, 11433, 15141, 16583, 17871, 26677, 41699, 49749, 80031, 87653, 116081, 125097, 186739, 262959, 348243, 560217, 613571, 1840713, 4294997, 12884991]

約数ペア:
[(1, 12884991), (3, 4294997), (7, 1840713), (21, 613571), (23, 560217), (37, 348243), (49, 262959), (69, 186739), (103, 125097), (111, 116081), (147, 87653), (161, 80031), (259, 49749), (309, 41699), (483, 26677), (721, 17871), (777, 16583), (851, 15141), (1127, 11433), (1813, 7107), (2163, 5957), (2369, 5439), (2553, 5047), (3381, 3811)]

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