18690718

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{28933}}^1$

素因数の和:28971

約数の個数: 16

約数和(自身を含む): 31248720

約数和(自身を除く): 12558002

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 28933, 57866, 491861, 549727, 983722, 1099454, 9345359, 18690718]

約数ペア:

[(1, 18690718), (2, 9345359), (17, 1099454), (19, 983722), (34, 549727), (38, 491861), (323, 57866), (646, 28933)]