12780432021

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{4792063}}^1$

素因数の和:4792200

約数の個数: 16

約数和(自身を含む): 19628294144

約数和(自身を除く): 6847862123

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 4792063, 14376189, 33544441, 100633323, 608592001, 1825776003, 4260144007, 12780432021]

約数ペア:

[(1, 12780432021), (3, 4260144007), (7, 1825776003), (21, 608592001), (127, 100633323), (381, 33544441), (889, 14376189), (2667, 4792063)]