21376173

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78301}}^1$

素因数の和:78324

約数の個数: 16

約数和(自身を含む): 35079296

約数和(自身を除く): 13703123

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 78301, 234903, 548107, 1017913, 1644321, 3053739, 7125391, 21376173]

約数ペア:

[(1, 21376173), (3, 7125391), (7, 3053739), (13, 1644321), (21, 1017913), (39, 548107), (91, 234903), (273, 78301)]