18158728

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7541}}^1$

素因数の和:7597

約数の個数: 32

約数和(自身を含む): 39821760

約数和(自身を除く): 21663032

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 7541, 15082, 30164, 52787, 60328, 105574, 211148, 324263, 422296, 648526, 1297052, 2269841, 2594104, 4539682, 9079364, 18158728]

約数ペア:

[(1, 18158728), (2, 9079364), (4, 4539682), (7, 2594104), (8, 2269841), (14, 1297052), (28, 648526), (43, 422296), (56, 324263), (86, 211148), (172, 105574), (301, 60328), (344, 52787), (602, 30164), (1204, 15082), (2408, 7541)]