21370291281

素因数分解:

$3^2\times {\mathrm{439}}^1\times {\mathrm{5408831}}^1$

素因数の和:5409276

約数の個数: 12

約数和(自身を含む): 30938519040

約数和(自身を除く): 9568227759

約数列:

[1, 3, 9, 439, 1317, 3951, 5408831, 16226493, 48679479, 2374476809, 7123430427, 21370291281]

約数ペア:

[(1, 21370291281), (3, 7123430427), (9, 2374476809), (439, 48679479), (1317, 16226493), (3951, 5408831)]