21173347

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{643}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 24343200

約数和(自身を除く): 3169853

約数列:

[1, 13, 17, 149, 221, 643, 1937, 2533, 8359, 10931, 32929, 95807, 142103, 1245491, 1628719, 21173347]

約数ペア:

[(1, 21173347), (13, 1628719), (17, 1245491), (149, 142103), (221, 95807), (643, 32929), (1937, 10931), (2533, 8359)]