81871515

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165397}}^1$

素因数の和:165419

約数の個数: 24

約数和(自身を含む): 154812528

約数和(自身を除く): 72941013

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 165397, 496191, 826985, 1488573, 1819367, 2480955, 5458101, 7442865, 9096835, 16374303, 27290505, 81871515]

約数ペア:

[(1, 81871515), (3, 27290505), (5, 16374303), (9, 9096835), (11, 7442865), (15, 5458101), (33, 2480955), (45, 1819367), (55, 1488573), (99, 826985), (165, 496191), (495, 165397)]