256244163

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{601}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 397608960

約数和(自身を除く): 141364797

約数列:

[1, 3, 7, 21, 79, 237, 257, 553, 601, 771, 1659, 1799, 1803, 4207, 5397, 12621, 20303, 47479, 60909, 142121, 142437, 154457, 332353, 426363, 463371, 997059, 1081199, 3243597, 12202103, 36606309, 85414721, 256244163]

約数ペア:

[(1, 256244163), (3, 85414721), (7, 36606309), (21, 12202103), (79, 3243597), (237, 1081199), (257, 997059), (553, 463371), (601, 426363), (771, 332353), (1659, 154457), (1799, 142437), (1803, 142121), (4207, 60909), (5397, 47479), (12621, 20303)]