208060881

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1427}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 325721088

約数和(自身を除く): 117660207

約数列:

[1, 3, 7, 21, 53, 131, 159, 371, 393, 917, 1113, 1427, 2751, 4281, 6943, 9989, 20829, 29967, 48601, 75631, 145803, 186937, 226893, 529417, 560811, 1308559, 1588251, 3925677, 9907661, 29722983, 69353627, 208060881]

約数ペア:

[(1, 208060881), (3, 69353627), (7, 29722983), (21, 9907661), (53, 3925677), (131, 1588251), (159, 1308559), (371, 560811), (393, 529417), (917, 226893), (1113, 186937), (1427, 145803), (2751, 75631), (4281, 48601), (6943, 29967), (9989, 20829)]