19681936

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{1861}}^1$

素因数の和:2530

約数の個数: 20

約数和(自身を含む): 38211964

約数和(自身を除く): 18530028

約数列:

[1, 2, 4, 8, 16, 661, 1322, 1861, 2644, 3722, 5288, 7444, 10576, 14888, 29776, 1230121, 2460242, 4920484, 9840968, 19681936]

約数ペア:

[(1, 19681936), (2, 9840968), (4, 4920484), (8, 2460242), (16, 1230121), (661, 29776), (1322, 14888), (1861, 10576), (2644, 7444), (3722, 5288)]