211329815

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 270838080

約数和(自身を除く): 59508265

約数列:

[1, 5, 29, 53, 107, 145, 257, 265, 535, 1285, 1537, 3103, 5671, 7453, 7685, 13621, 15515, 27499, 28355, 37265, 68105, 137495, 164459, 395009, 797471, 822295, 1457447, 1975045, 3987355, 7287235, 42265963, 211329815]

約数ペア:

[(1, 211329815), (5, 42265963), (29, 7287235), (53, 3987355), (107, 1975045), (145, 1457447), (257, 822295), (265, 797471), (535, 395009), (1285, 164459), (1537, 137495), (3103, 68105), (5671, 37265), (7453, 28355), (7685, 27499), (13621, 15515)]