About the Number
20972481
2進数表記:1010000000000001111000001
漢数字表記:二千九十七万二千四百八十一
素因数分解:
素因数の和:325
約数の個数: 32
約数和(自身を含む): 30965760
約数和(自身を除く): 9993279
約数列:
[1, 3, 23, 29, 47, 69, 87, 141, 223, 667, 669, 1081, 1363, 2001, 3243, 4089, 5129, 6467, 10481, 15387, 19401, 31349, 31443, 94047, 148741, 241063, 303949, 446223, 723189, 911847, 6990827, 20972481]
約数ペア:
[(1, 20972481), (3, 6990827), (23, 911847), (29, 723189), (47, 446223), (69, 303949), (87, 241063), (141, 148741), (223, 94047), (667, 31443), (669, 31349), (1081, 19401), (1363, 15387), (2001, 10481), (3243, 6467), (4089, 5129)]このpageの処理時間: 0.0037813186645507812 seconds