About the Number
21006920
2進数表記:1010000001000101001001000
漢数字表記:二千百万六千九百二十
素因数分解:
素因数の和:47765
約数の個数: 32
約数和(自身を含む): 51563520
約数和(自身を除く): 30556600
約数列:
[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47743, 95486, 190972, 238715, 381944, 477430, 525173, 954860, 1050346, 1909720, 2100692, 2625865, 4201384, 5251730, 10503460, 21006920]
約数ペア:
[(1, 21006920), (2, 10503460), (4, 5251730), (5, 4201384), (8, 2625865), (10, 2100692), (11, 1909720), (20, 1050346), (22, 954860), (40, 525173), (44, 477430), (55, 381944), (88, 238715), (110, 190972), (220, 95486), (440, 47743)]このpageの処理時間: 0.007411479949951172 seconds