About the Number

18122972

18122971 ← → 18122973

2進数表記:1000101001000100011011100

漢数字表記:千八百十二万二千九百七十二

素因数分解:

2 2 × 7 1 × 31 1 × 20879 1

素因数の和:20921
約数の個数: 24
約数和(自身を含む): 37416960
約数和(自身を除く): 19293988

約数列:
[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 20879, 41758, 83516, 146153, 292306, 584612, 647249, 1294498, 2588996, 4530743, 9061486, 18122972]

約数ペア:
[(1, 18122972), (2, 9061486), (4, 4530743), (7, 2588996), (14, 1294498), (28, 647249), (31, 584612), (62, 292306), (124, 146153), (217, 83516), (434, 41758), (868, 20879)]

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