81239354

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{15641}}^1$

素因数の和:15710

約数の個数: 24

約数和(自身を含む): 144438228

約数和(自身を除く): 63198874

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 5194, 15641, 31282, 109487, 218974, 766409, 828973, 1532818, 1657946, 5802811, 11605622, 40619677, 81239354]

約数ペア:

[(1, 81239354), (2, 40619677), (7, 11605622), (14, 5802811), (49, 1657946), (53, 1532818), (98, 828973), (106, 766409), (371, 218974), (742, 109487), (2597, 31282), (5194, 15641)]