211781638

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{83}}^2\times {\mathrm{809}}^1$

素因数の和:996

約数の個数: 24

約数和(自身を含む): 338887800

約数和(自身を除く): 127106162

約数列:

[1, 2, 19, 38, 83, 166, 809, 1577, 1618, 3154, 6889, 13778, 15371, 30742, 67147, 130891, 134294, 261782, 1275793, 2551586, 5573201, 11146402, 105890819, 211781638]

約数ペア:

[(1, 211781638), (2, 105890819), (19, 11146402), (38, 5573201), (83, 2551586), (166, 1275793), (809, 261782), (1577, 134294), (1618, 130891), (3154, 67147), (6889, 30742), (13778, 15371)]