217430403

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1\times {\mathrm{3461}}^1$

素因数の和:3994

約数の個数: 16

約数和(自身を含む): 297344256

約数和(自身を除く): 79913853

約数列:

[1, 3, 43, 129, 487, 1461, 3461, 10383, 20941, 62823, 148823, 446469, 1685507, 5056521, 72476801, 217430403]

約数ペア:

[(1, 217430403), (3, 72476801), (43, 5056521), (129, 1685507), (487, 446469), (1461, 148823), (3461, 62823), (10383, 20941)]