18240944

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{26513}}^1$

素因数の和:26564

約数の個数: 20

約数和(自身を含む): 36165096

約数和(自身を除く): 17924152

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 26513, 53026, 106052, 212104, 424208, 1140059, 2280118, 4560236, 9120472, 18240944]

約数ペア:

[(1, 18240944), (2, 9120472), (4, 4560236), (8, 2280118), (16, 1140059), (43, 424208), (86, 212104), (172, 106052), (344, 53026), (688, 26513)]