21034293

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13721}}^1$

素因数の和:13804

約数の個数: 16

約数和(自身を含む): 32493696

約数和(自身を除く): 11459403

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13721, 41163, 96047, 288141, 1001633, 3004899, 7011431, 21034293]

約数ペア:

[(1, 21034293), (3, 7011431), (7, 3004899), (21, 1001633), (73, 288141), (219, 96047), (511, 41163), (1533, 13721)]