20403512

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{19469}}^1$

素因数の和:19606

約数の個数: 16

約数和(自身を含む): 38550600

約数和(自身を除く): 18147088

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 19469, 38938, 77876, 155752, 2550439, 5100878, 10201756, 20403512]

約数ペア:

[(1, 20403512), (2, 10201756), (4, 5100878), (8, 2550439), (131, 155752), (262, 77876), (524, 38938), (1048, 19469)]