18691088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3907}}^1$

素因数の和:3951

約数の個数: 40

約数和(自身を含む): 40705728

約数和(自身を除く): 22014640

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 3907, 4784, 7814, 15628, 31256, 50791, 62512, 89861, 101582, 179722, 203164, 359444, 406328, 718888, 812656, 1168193, 1437776, 2336386, 4672772, 9345544, 18691088]

約数ペア:

[(1, 18691088), (2, 9345544), (4, 4672772), (8, 2336386), (13, 1437776), (16, 1168193), (23, 812656), (26, 718888), (46, 406328), (52, 359444), (92, 203164), (104, 179722), (184, 101582), (208, 89861), (299, 62512), (368, 50791), (598, 31256), (1196, 15628), (2392, 7814), (3907, 4784)]