19787913

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 29315520

約数和(自身を除く): 9527607

約数列:

[1, 3, 9, 71, 173, 179, 213, 519, 537, 639, 1557, 1611, 12283, 12709, 30967, 36849, 38127, 92901, 110547, 114381, 278703, 2198657, 6595971, 19787913]

約数ペア:

[(1, 19787913), (3, 6595971), (9, 2198657), (71, 278703), (173, 114381), (179, 110547), (213, 92901), (519, 38127), (537, 36849), (639, 30967), (1557, 12709), (1611, 12283)]