257282613

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{60953}}^1$

素因数の和:61033

約数の個数: 24

約数和(自身を含む): 431066688

約数和(自身を除く): 173784075

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 60953, 182859, 426671, 548577, 1280013, 3840039, 4083851, 12251553, 28586957, 36754659, 85760871, 257282613]

約数ペア:

[(1, 257282613), (3, 85760871), (7, 36754659), (9, 28586957), (21, 12251553), (63, 4083851), (67, 3840039), (201, 1280013), (469, 548577), (603, 426671), (1407, 182859), (4221, 60953)]