About the Number

21290590

21290589 ← → 21290591

2進数表記:1010001001101111001011110

漢数字表記:二千百二十九万五百九十

素因数分解:

2 1 × 5 1 × 43 1 × 67 1 × 739 1

素因数の和:856
約数の個数: 32
約数和(自身を含む): 39853440
約数和(自身を除く): 18562850

約数列:
[1, 2, 5, 10, 43, 67, 86, 134, 215, 335, 430, 670, 739, 1478, 2881, 3695, 5762, 7390, 14405, 28810, 31777, 49513, 63554, 99026, 158885, 247565, 317770, 495130, 2129059, 4258118, 10645295, 21290590]

約数ペア:
[(1, 21290590), (2, 10645295), (5, 4258118), (10, 2129059), (43, 495130), (67, 317770), (86, 247565), (134, 158885), (215, 99026), (335, 63554), (430, 49513), (670, 31777), (739, 28810), (1478, 14405), (2881, 7390), (3695, 5762)]

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