28154979

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{773}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 44582400

約数和(自身を除く): 16427421

約数列:

[1, 3, 9, 19, 27, 57, 71, 171, 213, 513, 639, 773, 1349, 1917, 2319, 4047, 6957, 12141, 14687, 20871, 36423, 44061, 54883, 132183, 164649, 396549, 493947, 1042777, 1481841, 3128331, 9384993, 28154979]

約数ペア:

[(1, 28154979), (3, 9384993), (9, 3128331), (19, 1481841), (27, 1042777), (57, 493947), (71, 396549), (171, 164649), (213, 132183), (513, 54883), (639, 44061), (773, 36423), (1349, 20871), (1917, 14687), (2319, 12141), (4047, 6957)]