About the Number

13440021

13440020 ← → 13440022

2進数表記:110011010001010000010101

漢数字表記:千三百四十四万二十一

素因数分解:

3 1 × 7 1 × 29 2 × 761 1

素因数の和:829
約数の個数: 24
約数和(自身を含む): 21238464
約数和(自身を除く): 7798443

約数列:
[1, 3, 7, 21, 29, 87, 203, 609, 761, 841, 2283, 2523, 5327, 5887, 15981, 17661, 22069, 66207, 154483, 463449, 640001, 1920003, 4480007, 13440021]

約数ペア:
[(1, 13440021), (3, 4480007), (7, 1920003), (21, 640001), (29, 463449), (87, 154483), (203, 66207), (609, 22069), (761, 17661), (841, 15981), (2283, 5887), (2523, 5327)]

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