19887368

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80191}}^1$

素因数の和:80228

約数の個数: 16

約数和(自身を含む): 38492160

約数和(自身を除く): 18604792

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80191, 160382, 320764, 641528, 2485921, 4971842, 9943684, 19887368]

約数ペア:

[(1, 19887368), (2, 9943684), (4, 4971842), (8, 2485921), (31, 641528), (62, 320764), (124, 160382), (248, 80191)]