338971647

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1\times {\mathrm{1301}}^1$

素因数の和:1983

約数の個数: 32

約数和(自身を含む): 544965120

約数和(自身を除く): 205993473

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 653, 1301, 1959, 3903, 4571, 9107, 12407, 13713, 24719, 27321, 37221, 74157, 86849, 173033, 260547, 519099, 849553, 2548659, 5946871, 16141507, 17840613, 48424521, 112990549, 338971647]

約数ペア:

[(1, 338971647), (3, 112990549), (7, 48424521), (19, 17840613), (21, 16141507), (57, 5946871), (133, 2548659), (399, 849553), (653, 519099), (1301, 260547), (1959, 173033), (3903, 86849), (4571, 74157), (9107, 37221), (12407, 27321), (13713, 24719)]