285440253

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{97787}}^1$

素因数の和:97936

約数の個数: 16

約数和(自身を含む): 438090240

約数和(自身を除く): 152649987

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 97787, 293361, 684509, 2053527, 13592393, 40777179, 95146751, 285440253]

約数ペア:

[(1, 285440253), (3, 95146751), (7, 40777179), (21, 13592393), (139, 2053527), (417, 684509), (973, 293361), (2919, 97787)]