220384563

素因数分解:

$3^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{20143}}^1$

素因数の和:20674

約数の個数: 16

約数和(自身を含む): 336485376

約数和(自身を除く): 116100813

約数列:

[1, 3, 7, 21, 521, 1563, 3647, 10941, 20143, 60429, 141001, 423003, 10494503, 31483509, 73461521, 220384563]

約数ペア:

[(1, 220384563), (3, 73461521), (7, 31483509), (21, 10494503), (521, 423003), (1563, 141001), (3647, 60429), (10941, 20143)]