205658979

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{433}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 297480960

約数和(自身を除く): 91821981

約数列:

[1, 3, 17, 51, 67, 139, 201, 417, 433, 1139, 1299, 2363, 3417, 7089, 7361, 9313, 22083, 27939, 29011, 60187, 87033, 158321, 180561, 474963, 493187, 1023179, 1479561, 3069537, 4032529, 12097587, 68552993, 205658979]

約数ペア:

[(1, 205658979), (3, 68552993), (17, 12097587), (51, 4032529), (67, 3069537), (139, 1479561), (201, 1023179), (417, 493187), (433, 474963), (1139, 180561), (1299, 158321), (2363, 87033), (3417, 60187), (7089, 29011), (7361, 27939), (9313, 22083)]