20715954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6947}}^1$

素因数の和:7030

約数の個数: 32

約数和(自身を含む): 48024576

約数和(自身を除く): 27308622

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 6947, 13894, 20841, 41682, 48629, 97258, 145887, 291774, 493237, 986474, 1479711, 2959422, 3452659, 6905318, 10357977, 20715954]

約数ペア:

[(1, 20715954), (2, 10357977), (3, 6905318), (6, 3452659), (7, 2959422), (14, 1479711), (21, 986474), (42, 493237), (71, 291774), (142, 145887), (213, 97258), (426, 48629), (497, 41682), (994, 20841), (1491, 13894), (2982, 6947)]