21146421

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{433}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 28775936

約数和(自身を除く): 7629515

約数列:

[1, 3, 73, 219, 223, 433, 669, 1299, 16279, 31609, 48837, 94827, 96559, 289677, 7048807, 21146421]

約数ペア:

[(1, 21146421), (3, 7048807), (73, 289677), (219, 96559), (223, 94827), (433, 48837), (669, 31609), (1299, 16279)]