18211489

素因数分解:

${\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 16

約数和(自身を含む): 19445184

約数和(自身を除く): 1233695

約数列:

[1, 43, 53, 61, 131, 2279, 2623, 3233, 5633, 6943, 7991, 139019, 298549, 343613, 423523, 18211489]

約数ペア:

[(1, 18211489), (43, 423523), (53, 343613), (61, 298549), (131, 139019), (2279, 7991), (2623, 6943), (3233, 5633)]