18881264

素因数分解:

$2^4\times {\mathrm{353}}^1\times {\mathrm{3343}}^1$

素因数の和:3704

約数の個数: 20

約数和(自身を含む): 36697056

約数和(自身を除く): 17815792

約数列:

[1, 2, 4, 8, 16, 353, 706, 1412, 2824, 3343, 5648, 6686, 13372, 26744, 53488, 1180079, 2360158, 4720316, 9440632, 18881264]

約数ペア:

[(1, 18881264), (2, 9440632), (4, 4720316), (8, 2360158), (16, 1180079), (353, 53488), (706, 26744), (1412, 13372), (2824, 6686), (3343, 5648)]