About the Number

855990421

855990420 ← → 855990422

2進数表記:110011000001010110000010010101

漢数字表記:八億五千五百九十九万四百二十一

素因数分解:

11 2 × 13 1 × 544177 1

素因数の和:544212
約数の個数: 12
約数和(自身を含む): 1013259436
約数和(自身を除く): 157269015

約数列:
[1, 11, 13, 121, 143, 1573, 544177, 5985947, 7074301, 65845417, 77817311, 855990421]

約数ペア:
[(1, 855990421), (11, 77817311), (13, 65845417), (121, 7074301), (143, 5985947), (1573, 544177)]

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