258621

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1$

素因数の和:492

約数の個数: 16

約数和(自身を含む): 399168

約数和(自身を除く): 140547

約数列:

[1, 3, 11, 17, 33, 51, 187, 461, 561, 1383, 5071, 7837, 15213, 23511, 86207, 258621]

約数ペア:

[(1, 258621), (3, 86207), (11, 23511), (17, 15213), (33, 7837), (51, 5071), (187, 1383), (461, 561)]