21629727

素因数分解:

$3^3\times 7^2\times {\mathrm{16349}}^1$

素因数の和:16372

約数の個数: 24

約数和(自身を含む): 37278000

約数和(自身を除く): 15648273

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16349, 49047, 114443, 147141, 343329, 441423, 801101, 1029987, 2403303, 3089961, 7209909, 21629727]

約数ペア:

[(1, 21629727), (3, 7209909), (7, 3089961), (9, 2403303), (21, 1029987), (27, 801101), (49, 441423), (63, 343329), (147, 147141), (189, 114443), (441, 49047), (1323, 16349)]