19805528

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{79861}}^1$

素因数の和:79898

約数の個数: 16

約数和(自身を含む): 38333760

約数和(自身を除く): 18528232

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 79861, 159722, 319444, 638888, 2475691, 4951382, 9902764, 19805528]

約数ペア:

[(1, 19805528), (2, 9902764), (4, 4951382), (8, 2475691), (31, 638888), (62, 319444), (124, 159722), (248, 79861)]