21196979

素因数分解:

${\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:298

約数の個数: 16

約数和(自身を含む): 22581504

約数和(自身を除く): 1384525

約数列:

[1, 43, 53, 71, 131, 2279, 3053, 3763, 5633, 6943, 9301, 161809, 298549, 399943, 492953, 21196979]

約数ペア:

[(1, 21196979), (43, 492953), (53, 399943), (71, 298549), (131, 161809), (2279, 9301), (3053, 6943), (3763, 5633)]