19740428

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{401}}^1$

素因数の和:833

約数の個数: 24

約数和(自身を含む): 35839104

約数和(自身を除く): 16098676

約数列:

[1, 2, 4, 31, 62, 124, 397, 401, 794, 802, 1588, 1604, 12307, 12431, 24614, 24862, 49228, 49724, 159197, 318394, 636788, 4935107, 9870214, 19740428]

約数ペア:

[(1, 19740428), (2, 9870214), (4, 4935107), (31, 636788), (62, 318394), (124, 159197), (397, 49724), (401, 49228), (794, 24862), (802, 24614), (1588, 12431), (1604, 12307)]