211320819

素因数分解:

$3^5\times {\mathrm{571}}^1\times {\mathrm{1523}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 317308992

約数和(自身を除く): 105988173

約数列:

[1, 3, 9, 27, 81, 243, 571, 1523, 1713, 4569, 5139, 13707, 15417, 41121, 46251, 123363, 138753, 370089, 869633, 2608899, 7826697, 23480091, 70440273, 211320819]

約数ペア:

[(1, 211320819), (3, 70440273), (9, 23480091), (27, 7826697), (81, 2608899), (243, 869633), (571, 370089), (1523, 138753), (1713, 123363), (4569, 46251), (5139, 41121), (13707, 15417)]