291221007

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{7043}}^1$

素因数の和:7243

約数の個数: 32

約数和(自身を含む): 486881280

約数和(自身を除く): 195660273

約数列:

[1, 3, 7, 11, 21, 33, 77, 179, 231, 537, 1253, 1969, 3759, 5907, 7043, 13783, 21129, 41349, 49301, 77473, 147903, 232419, 542311, 1260697, 1626933, 3782091, 8824879, 13867667, 26474637, 41603001, 97073669, 291221007]

約数ペア:

[(1, 291221007), (3, 97073669), (7, 41603001), (11, 26474637), (21, 13867667), (33, 8824879), (77, 3782091), (179, 1626933), (231, 1260697), (537, 542311), (1253, 232419), (1969, 147903), (3759, 77473), (5907, 49301), (7043, 41349), (13783, 21129)]