19802984

素因数分解:

$2^3\times {\mathrm{401}}^1\times {\mathrm{6173}}^1$

素因数の和:6580

約数の個数: 16

約数和(自身を含む): 37229220

約数和(自身を除く): 17426236

約数列:

[1, 2, 4, 8, 401, 802, 1604, 3208, 6173, 12346, 24692, 49384, 2475373, 4950746, 9901492, 19802984]

約数ペア:

[(1, 19802984), (2, 9901492), (4, 4950746), (8, 2475373), (401, 49384), (802, 24692), (1604, 12346), (3208, 6173)]