About the Number

1991444

1991443 ← → 1991445

2進数表記:111100110001100010100

漢数字表記:百九十九万千四百四十四

素因数分解:

2 2 × 7 1 × 13 1 × 5471 1

素因数の和:5495
約数の個数: 24
約数和(自身を含む): 4290048
約数和(自身を除く): 2298604

約数列:
[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 5471, 10942, 21884, 38297, 71123, 76594, 142246, 153188, 284492, 497861, 995722, 1991444]

約数ペア:
[(1, 1991444), (2, 995722), (4, 497861), (7, 284492), (13, 153188), (14, 142246), (26, 76594), (28, 71123), (52, 38297), (91, 21884), (182, 10942), (364, 5471)]

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