221169

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:176

約数の個数: 16

約数和(自身を含む): 326592

約数和(自身を除く): 105423

約数列:

[1, 3, 13, 39, 53, 107, 159, 321, 689, 1391, 2067, 4173, 5671, 17013, 73723, 221169]

約数ペア:

[(1, 221169), (3, 73723), (13, 17013), (39, 5671), (53, 4173), (107, 2067), (159, 1391), (321, 689)]