18889986

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{347}}^1$

素因数の和:606

約数の個数: 32

約数和(自身を含む): 38953728

約数和(自身を除く): 20063742

約数列:

[1, 2, 3, 6, 43, 86, 129, 211, 258, 347, 422, 633, 694, 1041, 1266, 2082, 9073, 14921, 18146, 27219, 29842, 44763, 54438, 73217, 89526, 146434, 219651, 439302, 3148331, 6296662, 9444993, 18889986]

約数ペア:

[(1, 18889986), (2, 9444993), (3, 6296662), (6, 3148331), (43, 439302), (86, 219651), (129, 146434), (211, 89526), (258, 73217), (347, 54438), (422, 44763), (633, 29842), (694, 27219), (1041, 18146), (1266, 14921), (2082, 9073)]