18705406

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 31337280

約数和(自身を除く): 12631874

約数列:

[1, 2, 17, 29, 34, 58, 61, 122, 311, 493, 622, 986, 1037, 1769, 2074, 3538, 5287, 9019, 10574, 18038, 18971, 30073, 37942, 60146, 153323, 306646, 322507, 550159, 645014, 1100318, 9352703, 18705406]

約数ペア:

[(1, 18705406), (2, 9352703), (17, 1100318), (29, 645014), (34, 550159), (58, 322507), (61, 306646), (122, 153323), (311, 60146), (493, 37942), (622, 30073), (986, 18971), (1037, 18038), (1769, 10574), (2074, 9019), (3538, 5287)]