209617821

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{15193}}^1$

素因数の和:15282

約数の個数: 32

約数和(自身を含む): 359793920

約数和(自身を除く): 150176099

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1533, 1971, 4599, 13797, 15193, 45579, 106351, 136737, 319053, 410211, 957159, 1109089, 2871477, 3327267, 7763623, 9981801, 23290869, 29945403, 69872607, 209617821]

約数ペア:

[(1, 209617821), (3, 69872607), (7, 29945403), (9, 23290869), (21, 9981801), (27, 7763623), (63, 3327267), (73, 2871477), (189, 1109089), (219, 957159), (511, 410211), (657, 319053), (1533, 136737), (1971, 106351), (4599, 45579), (13797, 15193)]