221161592

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{389369}}^1$

素因数の和:389446

約数の個数: 16

約数和(自身を含む): 420519600

約数和(自身を除く): 199358008

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 389369, 778738, 1557476, 3114952, 27645199, 55290398, 110580796, 221161592]

約数ペア:

[(1, 221161592), (2, 110580796), (4, 55290398), (8, 27645199), (71, 3114952), (142, 1557476), (284, 778738), (568, 389369)]