380671569

素因数分解:

$3^4\times {\mathrm{1999}}^1\times {\mathrm{2351}}^1$

素因数の和:4362

約数の個数: 20

約数和(自身を含む): 569184000

約数和(自身を除く): 188512431

約数列:

[1, 3, 9, 27, 81, 1999, 2351, 5997, 7053, 17991, 21159, 53973, 63477, 161919, 190431, 4699649, 14098947, 42296841, 126890523, 380671569]

約数ペア:

[(1, 380671569), (3, 126890523), (9, 42296841), (27, 14098947), (81, 4699649), (1999, 190431), (2351, 161919), (5997, 63477), (7053, 53973), (17991, 21159)]