19535416

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 37897200

約数和(自身を除く): 18361784

約数列:

[1, 2, 4, 8, 43, 86, 109, 172, 218, 344, 436, 521, 872, 1042, 2084, 4168, 4687, 9374, 18748, 22403, 37496, 44806, 56789, 89612, 113578, 179224, 227156, 454312, 2441927, 4883854, 9767708, 19535416]

約数ペア:

[(1, 19535416), (2, 9767708), (4, 4883854), (8, 2441927), (43, 454312), (86, 227156), (109, 179224), (172, 113578), (218, 89612), (344, 56789), (436, 44806), (521, 37496), (872, 22403), (1042, 18748), (2084, 9374), (4168, 4687)]