251570709

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{126481}}^1$

素因数の和:126517

約数の個数: 24

約数和(自身を含む): 414355032

約数和(自身を除く): 162784323

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 126481, 379443, 1138329, 1644253, 2150177, 4932759, 6450531, 14798277, 19351593, 27952301, 83856903, 251570709]

約数ペア:

[(1, 251570709), (3, 83856903), (9, 27952301), (13, 19351593), (17, 14798277), (39, 6450531), (51, 4932759), (117, 2150177), (153, 1644253), (221, 1138329), (663, 379443), (1989, 126481)]