1780498881

素因数分解:

$3^3\times 7^1\times {\mathrm{9420629}}^1$

素因数の和:9420645

約数の個数: 16

約数和(自身を含む): 3014601600

約数和(自身を除く): 1234102719

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 9420629, 28261887, 65944403, 84785661, 197833209, 254356983, 593499627, 1780498881]

約数ペア:

[(1, 1780498881), (3, 593499627), (7, 254356983), (9, 197833209), (21, 84785661), (27, 65944403), (63, 28261887), (189, 9420629)]