19874959

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 22123584

約数和(自身を除く): 2248625

約数列:

[1, 13, 61, 71, 353, 793, 923, 4331, 4589, 21533, 25063, 56303, 279929, 325819, 1528843, 19874959]

約数ペア:

[(1, 19874959), (13, 1528843), (61, 325819), (71, 279929), (353, 56303), (793, 25063), (923, 21533), (4331, 4589)]