18985442

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{8423}}^1$

素因数の和:8462

約数の個数: 24

約数和(自身を含む): 34572096

約数和(自身を除く): 15586654

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 1127, 2254, 8423, 16846, 58961, 117922, 193729, 387458, 412727, 825454, 1356103, 2712206, 9492721, 18985442]

約数ペア:

[(1, 18985442), (2, 9492721), (7, 2712206), (14, 1356103), (23, 825454), (46, 412727), (49, 387458), (98, 193729), (161, 117922), (322, 58961), (1127, 16846), (2254, 8423)]