215865784

素因数分解:

$2^3\times {\mathrm{223}}^1\times {\mathrm{121001}}^1$

素因数の和:121230

約数の個数: 16

約数和(自身を含む): 406566720

約数和(自身を除く): 190700936

約数列:

[1, 2, 4, 8, 223, 446, 892, 1784, 121001, 242002, 484004, 968008, 26983223, 53966446, 107932892, 215865784]

約数ペア:

[(1, 215865784), (2, 107932892), (4, 53966446), (8, 26983223), (223, 968008), (446, 484004), (892, 242002), (1784, 121001)]