2855139

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1721}}^1$

素因数の和:1810

約数の個数: 16

約数和(自身を含む): 4408320

約数和(自身を除く): 1553181

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 1721, 5163, 12047, 36141, 135959, 407877, 951713, 2855139]

約数ペア:

[(1, 2855139), (3, 951713), (7, 407877), (21, 135959), (79, 36141), (237, 12047), (553, 5163), (1659, 1721)]