21013818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1019}}^1$

素因数の和:1522

約数の個数: 32

約数和(自身を含む): 48176640

約数和(自身を除く): 27162822

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 491, 982, 1019, 1473, 2038, 2946, 3057, 3437, 6114, 6874, 7133, 10311, 14266, 20622, 21399, 42798, 500329, 1000658, 1500987, 3001974, 3502303, 7004606, 10506909, 21013818]

約数ペア:

[(1, 21013818), (2, 10506909), (3, 7004606), (6, 3502303), (7, 3001974), (14, 1500987), (21, 1000658), (42, 500329), (491, 42798), (982, 21399), (1019, 20622), (1473, 14266), (2038, 10311), (2946, 7133), (3057, 6874), (3437, 6114)]