81459413

素因数分解:

$7^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:262

約数の個数: 32

約数和(自身を含む): 100761600

約数和(自身を除く): 19302187

約数列:

[1, 7, 31, 47, 49, 163, 217, 329, 343, 1141, 1457, 1519, 2303, 5053, 7661, 7987, 10199, 10633, 16121, 35371, 53627, 55909, 71393, 237491, 247597, 375389, 499751, 1662437, 1733179, 2627723, 11637059, 81459413]

約数ペア:

[(1, 81459413), (7, 11637059), (31, 2627723), (47, 1733179), (49, 1662437), (163, 499751), (217, 375389), (329, 247597), (343, 237491), (1141, 71393), (1457, 55909), (1519, 53627), (2303, 35371), (5053, 16121), (7661, 10633), (7987, 10199)]