21708304

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{4099}}^1$

素因数の和:4438

約数の個数: 20

約数和(自身を含む): 42197200

約数和(自身を除く): 20488896

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 4099, 5296, 8198, 16396, 32792, 65584, 1356769, 2713538, 5427076, 10854152, 21708304]

約数ペア:

[(1, 21708304), (2, 10854152), (4, 5427076), (8, 2713538), (16, 1356769), (331, 65584), (662, 32792), (1324, 16396), (2648, 8198), (4099, 5296)]