18239487

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2689}}^1$

素因数の和:2735

約数の個数: 32

約数和(自身を含む): 30988800

約数和(自身を除く): 12749313

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 2689, 6783, 8067, 18823, 45713, 51091, 56469, 137139, 153273, 319991, 357637, 868547, 959973, 1072911, 2605641, 6079829, 18239487]

約数ペア:

[(1, 18239487), (3, 6079829), (7, 2605641), (17, 1072911), (19, 959973), (21, 868547), (51, 357637), (57, 319991), (119, 153273), (133, 137139), (323, 56469), (357, 51091), (399, 45713), (969, 18823), (2261, 8067), (2689, 6783)]