19828369

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{433}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 22748544

約数和(自身を除く): 2920175

約数列:

[1, 11, 23, 181, 253, 433, 1991, 4163, 4763, 9959, 45793, 78373, 109549, 862103, 1802579, 19828369]

約数ペア:

[(1, 19828369), (11, 1802579), (23, 862103), (181, 109549), (253, 78373), (433, 45793), (1991, 9959), (4163, 4763)]