19907216

素因数分解:

$2^4\times 7^1\times {\mathrm{177743}}^1$

素因数の和:177758

約数の個数: 20

約数和(自身を含む): 44080512

約数和(自身を除く): 24173296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 177743, 355486, 710972, 1244201, 1421944, 2488402, 2843888, 4976804, 9953608, 19907216]

約数ペア:

[(1, 19907216), (2, 9953608), (4, 4976804), (7, 2843888), (8, 2488402), (14, 1421944), (16, 1244201), (28, 710972), (56, 355486), (112, 177743)]