About the Number

15138981

15138980 ← → 15138982

2進数表記:111001110000000010100101

漢数字表記:千五百十三万八千九百八十一

素因数分解:

3 4 × 11 1 × 13 1 × 1307 1

素因数の和:1343
約数の個数: 40
約数和(自身を含む): 26589024
約数和(自身を除く): 11450043

約数列:
[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 297, 351, 429, 891, 1053, 1287, 1307, 3861, 3921, 11583, 11763, 14377, 16991, 35289, 43131, 50973, 105867, 129393, 152919, 186901, 388179, 458757, 560703, 1164537, 1376271, 1682109, 5046327, 15138981]

約数ペア:
[(1, 15138981), (3, 5046327), (9, 1682109), (11, 1376271), (13, 1164537), (27, 560703), (33, 458757), (39, 388179), (81, 186901), (99, 152919), (117, 129393), (143, 105867), (297, 50973), (351, 43131), (429, 35289), (891, 16991), (1053, 14377), (1287, 11763), (1307, 11583), (3861, 3921)]

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