21077091

素因数分解:

$3^5\times 7^1\times {\mathrm{12391}}^1$

素因数の和:12413

約数の個数: 24

約数和(自身を含む): 36085504

約数和(自身を除く): 15008413

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 12391, 37173, 86737, 111519, 260211, 334557, 780633, 1003671, 2341899, 3011013, 7025697, 21077091]

約数ペア:

[(1, 21077091), (3, 7025697), (7, 3011013), (9, 2341899), (21, 1003671), (27, 780633), (63, 334557), (81, 260211), (189, 111519), (243, 86737), (567, 37173), (1701, 12391)]