21423339

素因数分解:

$3^3\times 7^2\times {\mathrm{16193}}^1$

素因数の和:16216

約数の個数: 24

約数和(自身を含む): 36922320

約数和(自身を除く): 15498981

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16193, 48579, 113351, 145737, 340053, 437211, 793457, 1020159, 2380371, 3060477, 7141113, 21423339]

約数ペア:

[(1, 21423339), (3, 7141113), (7, 3060477), (9, 2380371), (21, 1020159), (27, 793457), (49, 437211), (63, 340053), (147, 145737), (189, 113351), (441, 48579), (1323, 16193)]