19992693

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 32486400

約数和(自身を除く): 12493707

約数列:

[1, 3, 7, 19, 21, 57, 89, 133, 267, 399, 563, 623, 1689, 1691, 1869, 3941, 5073, 10697, 11823, 11837, 32091, 35511, 50107, 74879, 150321, 224637, 350749, 952033, 1052247, 2856099, 6664231, 19992693]

約数ペア:

[(1, 19992693), (3, 6664231), (7, 2856099), (19, 1052247), (21, 952033), (57, 350749), (89, 224637), (133, 150321), (267, 74879), (399, 50107), (563, 35511), (623, 32091), (1689, 11837), (1691, 11823), (1869, 10697), (3941, 5073)]