21481515

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43397}}^1$

素因数の和:43419

約数の個数: 24

約数和(自身を含む): 40620528

約数和(自身を除く): 19139013

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 43397, 130191, 216985, 390573, 477367, 650955, 1432101, 1952865, 2386835, 4296303, 7160505, 21481515]

約数ペア:

[(1, 21481515), (3, 7160505), (5, 4296303), (9, 2386835), (11, 1952865), (15, 1432101), (33, 650955), (45, 477367), (55, 390573), (99, 216985), (165, 130191), (495, 43397)]