2778778849

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{221399}}^1$

素因数の和:221580

約数の個数: 16

約数和(自身を含む): 3485721600

約数和(自身を除く): 706942751

約数列:

[1, 7, 11, 77, 163, 1141, 1793, 12551, 221399, 1549793, 2435389, 17047723, 36088037, 252616259, 396968407, 2778778849]

約数ペア:

[(1, 2778778849), (7, 396968407), (11, 252616259), (77, 36088037), (163, 17047723), (1141, 2435389), (1793, 1549793), (12551, 221399)]