205654423

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 257192320

約数和(自身を除く): 51537897

約数列:

[1, 13, 17, 19, 43, 67, 221, 247, 289, 323, 559, 731, 817, 871, 1139, 1273, 2881, 3757, 4199, 5491, 9503, 10621, 12427, 13889, 14807, 16549, 19363, 21641, 37453, 48977, 54739, 71383, 161551, 180557, 236113, 251719, 281333, 367897, 636701, 711607, 832609, 930563, 3069469, 4782661, 10823917, 12097319, 15819571, 205654423]

約数ペア:

[(1, 205654423), (13, 15819571), (17, 12097319), (19, 10823917), (43, 4782661), (67, 3069469), (221, 930563), (247, 832609), (289, 711607), (323, 636701), (559, 367897), (731, 281333), (817, 251719), (871, 236113), (1139, 180557), (1273, 161551), (2881, 71383), (3757, 54739), (4199, 48977), (5491, 37453), (9503, 21641), (10621, 19363), (12427, 16549), (13889, 14807)]