28690557

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{22397}}^1$

素因数の和:22468

約数の個数: 16

約数和(自身を含む): 44437632

約数和(自身を除く): 15747075

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 22397, 67191, 156779, 470337, 1366217, 4098651, 9563519, 28690557]

約数ペア:

[(1, 28690557), (3, 9563519), (7, 4098651), (21, 1366217), (61, 470337), (183, 156779), (427, 67191), (1281, 22397)]