21420429

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{16339}}^1$

素因数の和:16384

約数の個数: 16

約数和(自身を含む): 31372800

約数和(自身を除く): 9952371

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 16339, 49017, 310441, 375797, 931323, 1127391, 7140143, 21420429]

約数ペア:

[(1, 21420429), (3, 7140143), (19, 1127391), (23, 931323), (57, 375797), (69, 310441), (437, 49017), (1311, 16339)]