13213221

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{3637}}^1$

素因数の和:3820

約数の個数: 16

約数和(自身を含む): 20256384

約数和(自身を除く): 7043163

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 3637, 10911, 25459, 76377, 629201, 1887603, 4404407, 13213221]

約数ペア:

[(1, 13213221), (3, 4404407), (7, 1887603), (21, 629201), (173, 76377), (519, 25459), (1211, 10911), (3633, 3637)]