16489221

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{4111}}^1$

素因数の和:4312

約数の個数: 16

約数和(自身を含む): 25264128

約数和(自身を除く): 8774907

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 4111, 12333, 28777, 86331, 785201, 2355603, 5496407, 16489221]

約数ペア:

[(1, 16489221), (3, 5496407), (7, 2355603), (21, 785201), (191, 86331), (573, 28777), (1337, 12333), (4011, 4111)]