205121049

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{70271}}^1$

素因数の和:70420

約数の個数: 16

約数和(自身を含む): 314818560

約数和(自身を除く): 109697511

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 70271, 210813, 491897, 1475691, 9767669, 29303007, 68373683, 205121049]

約数ペア:

[(1, 205121049), (3, 68373683), (7, 29303007), (21, 9767669), (139, 1475691), (417, 491897), (973, 210813), (2919, 70271)]