65540391

素因数分解:

$3^1\times 7^2\times {\mathrm{445853}}^1$

素因数の和:445870

約数の個数: 12

約数和(自身を含む): 101654712

約数和(自身を除く): 36114321

約数列:

[1, 3, 7, 21, 49, 147, 445853, 1337559, 3120971, 9362913, 21846797, 65540391]

約数ペア:

[(1, 65540391), (3, 21846797), (7, 9362913), (21, 3120971), (49, 1337559), (147, 445853)]