2019778887

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{645503}}^1$

素因数の和:645662

約数の個数: 16

約数和(自身を含む): 3098419200

約数和(自身を除く): 1078640313

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 645503, 1936509, 4518521, 13555563, 96179947, 288539841, 673259629, 2019778887]

約数ペア:

[(1, 2019778887), (3, 673259629), (7, 288539841), (21, 96179947), (149, 13555563), (447, 4518521), (1043, 1936509), (3129, 645503)]