21875715

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16763}}^1$

素因数の和:16803

約数の個数: 24

約数和(自身を含む): 39227760

約数和(自身を除く): 17352045

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16763, 50289, 83815, 150867, 251445, 486127, 754335, 1458381, 2430635, 4375143, 7291905, 21875715]

約数ペア:

[(1, 21875715), (3, 7291905), (5, 4375143), (9, 2430635), (15, 1458381), (29, 754335), (45, 486127), (87, 251445), (145, 150867), (261, 83815), (435, 50289), (1305, 16763)]