21149698

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1\times {\mathrm{827}}^1$

素因数の和:1521

約数の個数: 16

約数和(自身を含む): 33484320

約数和(自身を除く): 12334622

約数列:

[1, 2, 19, 38, 673, 827, 1346, 1654, 12787, 15713, 25574, 31426, 556571, 1113142, 10574849, 21149698]

約数ペア:

[(1, 21149698), (2, 10574849), (19, 1113142), (38, 556571), (673, 31426), (827, 25574), (1346, 15713), (1654, 12787)]