21371512

素因数分解:

$2^3\times {\mathrm{269}}^1\times {\mathrm{9931}}^1$

素因数の和:10206

約数の個数: 16

約数和(自身を含む): 40224600

約数和(自身を除く): 18853088

約数列:

[1, 2, 4, 8, 269, 538, 1076, 2152, 9931, 19862, 39724, 79448, 2671439, 5342878, 10685756, 21371512]

約数ペア:

[(1, 21371512), (2, 10685756), (4, 5342878), (8, 2671439), (269, 79448), (538, 39724), (1076, 19862), (2152, 9931)]