258888447

素因数分解:

$3^3\times {\mathrm{157}}^2\times {\mathrm{389}}^1$

素因数の和:712

約数の個数: 24

約数和(自身を含む): 386989200

約数和(自身を除く): 128100753

約数列:

[1, 3, 9, 27, 157, 389, 471, 1167, 1413, 3501, 4239, 10503, 24649, 61073, 73947, 183219, 221841, 549657, 665523, 1648971, 9588461, 28765383, 86296149, 258888447]

約数ペア:

[(1, 258888447), (3, 86296149), (9, 28765383), (27, 9588461), (157, 1648971), (389, 665523), (471, 549657), (1167, 221841), (1413, 183219), (3501, 73947), (4239, 61073), (10503, 24649)]