18855319

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:534

約数の個数: 16

約数和(自身を含む): 22192128

約数和(自身を除く): 3336809

約数列:

[1, 7, 47, 223, 257, 329, 1561, 1799, 10481, 12079, 57311, 73367, 84553, 401177, 2693617, 18855319]

約数ペア:

[(1, 18855319), (7, 2693617), (47, 401177), (223, 84553), (257, 73367), (329, 57311), (1561, 12079), (1799, 10481)]