About the Number

420792021

420792020 ← → 420792022

2進数表記:11001000101001100011011010101

漢数字表記:四億二千七十九万二千二十一

素因数分解:

3 2 × 13 1 × 127 1 × 28319 1

素因数の和:28465
約数の個数: 24
約数和(自身を含む): 659742720
約数和(自身を除く): 238950699

約数列:
[1, 3, 9, 13, 39, 117, 127, 381, 1143, 1651, 4953, 14859, 28319, 84957, 254871, 368147, 1104441, 3313323, 3596513, 10789539, 32368617, 46754669, 140264007, 420792021]

約数ペア:
[(1, 420792021), (3, 140264007), (9, 46754669), (13, 32368617), (39, 10789539), (117, 3596513), (127, 3313323), (381, 1104441), (1143, 368147), (1651, 254871), (4953, 84957), (14859, 28319)]

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