19808504

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{79873}}^1$

素因数の和:79910

約数の個数: 16

約数和(自身を含む): 38339520

約数和(自身を除く): 18531016

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 79873, 159746, 319492, 638984, 2476063, 4952126, 9904252, 19808504]

約数ペア:

[(1, 19808504), (2, 9904252), (4, 4952126), (8, 2476063), (31, 638984), (62, 319492), (124, 159746), (248, 79873)]