19691248

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28621}}^1$

素因数の和:28672

約数の個数: 20

約数和(自身を含む): 39040408

約数和(自身を除く): 19349160

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28621, 57242, 114484, 228968, 457936, 1230703, 2461406, 4922812, 9845624, 19691248]

約数ペア:

[(1, 19691248), (2, 9845624), (4, 4922812), (8, 2461406), (16, 1230703), (43, 457936), (86, 228968), (172, 114484), (344, 57242), (688, 28621)]