393968771

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{49939}}^1$

素因数の和:49983

約数の個数: 16

約数和(自身を含む): 479424000

約数和(自身を除く): 85455229

約数列:

[1, 7, 23, 49, 161, 343, 1127, 7889, 49939, 349573, 1148597, 2447011, 8040179, 17129077, 56281253, 393968771]

約数ペア:

[(1, 393968771), (7, 56281253), (23, 17129077), (49, 8040179), (161, 2447011), (343, 1148597), (1127, 349573), (7889, 49939)]