55721211

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{204107}}^1$

素因数の和:204130

約数の個数: 16

約数和(自身を含む): 91440384

約数和(自身を除く): 35719173

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 204107, 612321, 1428749, 2653391, 4286247, 7960173, 18573737, 55721211]

約数ペア:

[(1, 55721211), (3, 18573737), (7, 7960173), (13, 4286247), (21, 2653391), (39, 1428749), (91, 612321), (273, 204107)]