19795504

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{15661}}^1$

素因数の和:15748

約数の個数: 20

約数和(自身を含む): 38841760

約数和(自身を除く): 19046256

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 15661, 31322, 62644, 125288, 250576, 1237219, 2474438, 4948876, 9897752, 19795504]

約数ペア:

[(1, 19795504), (2, 9897752), (4, 4948876), (8, 2474438), (16, 1237219), (79, 250576), (158, 125288), (316, 62644), (632, 31322), (1264, 15661)]