21309104

素因数分解:

$2^4\times {\mathrm{269}}^1\times {\mathrm{4951}}^1$

素因数の和:5228

約数の個数: 20

約数和(自身を含む): 41448240

約数和(自身を除く): 20139136

約数列:

[1, 2, 4, 8, 16, 269, 538, 1076, 2152, 4304, 4951, 9902, 19804, 39608, 79216, 1331819, 2663638, 5327276, 10654552, 21309104]

約数ペア:

[(1, 21309104), (2, 10654552), (4, 5327276), (8, 2663638), (16, 1331819), (269, 79216), (538, 39608), (1076, 19804), (2152, 9902), (4304, 4951)]